From 575ca536c237eff331998714cdbebaf88fe3b5c6 Mon Sep 17 00:00:00 2001 From: Geo Halkiadakis Date: Tue, 9 Apr 2024 19:12:30 +0300 Subject: step-1: import main search implementations into node --- paths.js | 2 +- pieces/kbutils.js | 25 ++ pieces/search.js | 730 +++++++++++++++++++++++++++++++++++++++++++ pieces/suggest.js | 902 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 1658 insertions(+), 1 deletion(-) create mode 100644 pieces/kbutils.js create mode 100644 pieces/search.js create mode 100644 pieces/suggest.js diff --git a/paths.js b/paths.js index 79348af..a955b16 100644 --- a/paths.js +++ b/paths.js @@ -51,7 +51,7 @@ router.get('/search/:title', (ctx, next) => { }); /** other routes - * + /suggest/ + * + /suggest/ * + /create * + /stats */ diff --git a/pieces/kbutils.js b/pieces/kbutils.js new file mode 100644 index 0000000..b8ae0ad --- /dev/null +++ b/pieces/kbutils.js @@ -0,0 +1,25 @@ +/** keyboardize + * ------------------------------------------------------------------------- + * translates string to keyboard-latin keys + * (the ones that used whan typing each letter of the word) + * + * @param str (string): original string (utf8 of latin or greek subgroups) + * @return (string): latin/ascii equivalent string + */ + +_kbu = { + ORiGiNal:'ςερτυθιοπασδφγηξκλζχψωβνμΕΡΤΥΘΙΟΠΑΣΔΦΓΗΞΚΛΖΧΨΩΒΝΜάέήίόύώϊΐϋΆΈΉΊΌΎΏΪΫQWERTYUIOPASDFGHJKLZXCVBNMqwertyuiopasdfghjklzxcvbnm0123456789- '.split(''), + kbKeyZed: 'sertyuiopasdfghjklzxcvbnmertyuiopasdfghjklzxcvbnmaehioyviiyaehioyviyqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnm0123456789- '.split(''), + map: new Map() +} +for (var i=0; i<_kbu.ORiGiNal.length; i++) _kbu.map.set(_kbu.ORiGiNal[i], _kbu.kbKeyZed[i]); + +_kbu.keyboardize = (str) => { + str = str.replace('\'',''); + var out = ''; + // [map]'s implementation is 40x faster than [for]'s + for (var i=0 ; i< str.length; i++) out += _kbu.map.get(str[i]); + return out; +} + +exports.keybutil = _kbu; \ No newline at end of file diff --git a/pieces/search.js b/pieces/search.js new file mode 100644 index 0000000..6606272 --- /dev/null +++ b/pieces/search.js @@ -0,0 +1,730 @@ +/** Search Engine + * --------------------------------------------------------------------------- + * + * TODO: + * CRITICAL: (optimization) + * Search initialization uses quite a lot of network sources; + * thus it should be started in a later time; + * lets say ... after `x` seconds + * or... when document/core-ui-elements are ready + * + * @parametres (json) : options + * --- + * @var {string} products_json : endpoint od product descriptions + * @var {string} search_tag : selector of field that shall act as typeahead-suggestions + * @var {string} visualize_search_results_url : url that will visualize the sended "results-page" + * @var {int} max_list : max-size of (rated) results expected + * @var {int} tolerance + * @var {boolean} debug : if true sends several debug console messages; if false mesagges are eliminated + */ + +retrosearch_module({ + products_json: 'https://storage.googleapis.com/pythia-files/uploads/json/emarket-products.json', + search_tag: '#tagsInput', + visualize_search_results_url: '/product_list', + max_list: 24, + tolerance: 42, + debug: ((location.hostname == 'localhost') || (location.hostname == '127.0.0.1')) +}); + + + +function retrosearch_module(options) { + + /** CONTENTS + * + * +1: Variables + * + * +2: Purify string functions + * + keyboardize + * + sanitize_GR + * + clean + * + * +3: Supplementary function (vanilla js) + * + ajax_get(url, callback) + * + createNgram (fuzzy) + * + checkSimilarity (fuzzy) + * + check_match + * + is_exact_match + * + match_one + * + * +4: Actual data loading (async) + * + * +5: Suggestions Engine (jQuery) + * + suggestions_engine + * + */ + + if (options.debug) console.log(`preparing retrosearch... (${+ new Date()})`); + + + /** 1. VARIABLES + * ------------------------------------------------------------------------- + *////////////////////////////////////////////////////////////////////////// + + var _kwlinks; // keyword links (word-connections; imported via ajax-get) + var _products = []; // all products (imported via ajax-get) + + // setup options + var _maxResults = options.max_list; // limit suggestions + var _blendProds = 4; // minimum final-produncts to blend with next-word suggestions + var _timeout_ms = 100; // time (in ms) for the search engine to find matches (before rendering) + var _allowFuzzy = true; // enable|disable fuzzy search + var _fuzzyLimit = .5; // minimum bigram score for being considered a match + var _Ngram_base = 2; // number of N in Ngram spliting algorithm + var _isReady = false; // whether the searchbox is ready to be used + + // product keywords + var keywordsURL = options.keywords_json; + + var cursor_on = { none: true }; // what product is highlighted; if not on product then { none: true } + + + + /** 2.PURIFY STRING FUNCTIONS + * ------------------------------------------------------------------------- + *////////////////////////////////////////////////////////////////////////// + + + /** keyboardize + * ------------------------------------------------------------------------- + * translates string to keyboard-latin keys + * (the ones that used whan typing each letter of the word) + * + * @param str (string): original string (utf8 of latin or greek subgroups) + * @return (string): latin/ascii equivalent string + */ + + // cache (keeo in global) any-character to keyboard-latin mapping + // --- -- -- - - - + var ORiGiNal = 'ςερτυθιοπασδφγηξκλζχψωβνμΕΡΤΥΘΙΟΠΑΣΔΦΓΗΞΚΛΖΧΨΩΒΝΜάέήίόύώϊΐϋΆΈΉΊΌΎΏΪΫQWERTYUIOPASDFGHJKLZXCVBNMqwertyuiopasdfghjklzxcvbnm0123456789- '.split(''); + var kbKeyZed = 'sertyuiopasdfghjklzxcvbnmertyuiopasdfghjklzxcvbnmaehioyviiyaehioyviyqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnm0123456789- '.split(''); + const map = new Map(); + for (var i=0; i { + ap = pair.split(' '); + accented_vowels.push({ + a: ap[0], // accented + p: ap[1] // pure = non accended + }); + }) + + // the actual `sanitize_GR` function code + // --- -- -- - - - + function sanitize_GR(str) { + + str = str.toLowerCase(); + + // replace accended vowels with pure ones + accented_vowels.forEach( v => { + str = str.replaceAll(v.a, v.p); + }); + + // replace sigma on the end of words + str = str + ' '; + str = str.replaceAll('σ-', 'ς-'); + str = str.replaceAll('σ ', 'ς '); + + return str; + } + + + /** clean text + * --- -- -- - - - + * removes non keyword characters [+ . , !] and internal multiple-spaces + * @param txt (string): product description + */ + function clean_text(txt) { + return txt.replace('+',' ').replace('.',' ').replace(',',' ') // change to space + .replace('!','').replace('\"', '') // remove character + .replace(' ',' ').replace(' ',' '); // remove multiple spaces + } + + + + /** 3. SUPPLEMENTARY FUNCTIONS + * ------------------------------------------------------------------------- + *////////////////////////////////////////////////////////////////////////// + + + // TODO: + // exclude some generic non-critial words when proccessing user's query + // ** example code to work with: + // var ignoredKeys_kb = []; // keywords to ignore (in kb-format) + // 'μας με σε για του της των από στο στον &'.split(' ').forEach(w => { ignoredKeys_kb.push(keyboardize(w)); }); + + // pure JS ajax GET request; return data as JSON + // no fancy things like UTF8; if needed use base64 + function ajax_get(url, callback) { + var xmlhttp = new XMLHttpRequest(); + xmlhttp.onreadystatechange = function() { + if (xmlhttp.readyState == 4 && xmlhttp.status == 200) { + try { + var data = JSON.parse(xmlhttp.responseText); + } catch(err) { + if (options.debug) console.log(err.message + " in " + xmlhttp.responseText); + return; + } + callback(data); + } + }; + xmlhttp.open("GET", url, true); + xmlhttp.send(); + } + + + // callback function for sorting resulrs per r (=rating) property + function compare_rate(a,b) { + return (a.r < b.r); + } + + + /** vwOverUnder + * vertical-wise over/under + * + * @param {document.element} el : element to check + * @param {document.element} container : container element (compairing) + * @return {int} .. [-1|0|+1] + * ..: 0 if element's heignt is completely into container's viewport + * ..: -1 if element's heignt is over container's viewport + * ..: +1 if element's heignt is under container's veiwport + */ + function vwOverUnder(el, container) { + let eR = el.getBoundingClientRect(); + let cR = container.getBoundingClientRect(); + console.log('er|cr', eR, cR); + + let result = -1; // default: element is under container's viewport + + if (eR.y >= cR.y && eR.y + eR.height <= cR.y + cR.height - options.tolerance) { + result = 0 // fully inside + + } else if (eR.y < cR.y) { + result = -1 + } + + return result; + } + + + + + /** 4. ACTUAL DATA LOADING + * ------------------------------------------------------------------------- + *////////////////////////////////////////////////////////////////////////// + + + + // TODO: + // control completion of async loads via .then() rather by this custom structrure + // Need to rewrite the folllowing code ............................. from here + // ........................................................................... + // ........................................................................... + + + /** workline + * ------------------------------------------------------------------------- + * custom object/data-structure + * to track status/completion of async svents + * (it does the job using a special set method) + */ + var workline = { + + trackerJL : 0, + set jsonLoaded(x) { + this.trackerJL = x; + + // fire event on certain values + if (x == 2) { + if (options.debug) console.info('suggestion-engine requirements fulfilled'); + _isReady = true; + // code to execute + // ... + } + }, + get jsonLoaded() { return this.trackerJL; } + }; + + + /** LOAD DATA (from endoints) + * --------------------------------------------------------------------------- + */ + + + function load_store_products(storeID) { + let prData = getSessionObj('prd'); + if (prData !== null) { + _products = prData; + if (options.debug) console.log(`...products fetched from cache (${+ new Date()})`); + workline.jsonLoaded++; + + } else { + ajax_get(options.products_json, function(data) { // get stor's _products + _products = data; + _products.forEach(p => {p.kb = keyboardize(p.w).toLowerCase()} ); + setSessionObj('prd', _products); + if (options.debug) console.log(`...products loaded; (${+ new Date()})`); + workline.jsonLoaded++; + CURRENT_STOREs_CATALOG = storeID; + }); + } + } + + var STORE = { id: 904 }; + + if (STORE.id != 0) load_store_products(STORE.id); + + // ........................................................................... + // ........................................................................... + // ................................................................ up to here + + + + + + /** 5. SEARCH ENGINE + * ------------------------------------------------------------------------- + *////////////////////////////////////////////////////////////////////////// + + workline.jsonLoaded++; // notify workline that jQuery is ready!! + + // suggestions engine ////////////////////////////////////////////////// + // --- + function suggestions_engine(qOrig) { + var results = []; // suggestions to respond + var pot = []; pot.length = 0; + + var space_ended = (qOrig.slice(-1) == ' ') ? true : false; + + // clean and sanitize and mark links onto q(uery) string + var q = keyboardize( sanitize_GR( clean_text(qOrig.trim()) ) ).trim(); + + // TODO: + // construct direct-linked words + // = do unequivocally replaces + // steps: + // 1. replace accented vowels with non accented ones + // 2. replace `/some pattern/gi , 'SOME-REPLACE-PATTERN'` + + var qAr = q.split(' '); // split to words + /// if (space_ended) qAr.push(' '); // if space-end existed, push a space to query array + /// + /// if (qAr.slice(-1) == "") { + /// qAr.pop(); + /// } + + if (options.debug) console.log('*** init SEARCH QUERY:', qOrig, 'search:', qAr); + + pot = _products; // potential results // NOTE: CRITICAL: BY REFERENCE + + var wi = 0; // word index (from list) + var wc = qAr.length; + + qAr.forEach( w => { + if (options.debug) console.log('...testing', w); + + let sf = []; // (matches) so far + let mi; // position of match + wi++; + + pot.forEach( it => { + let matched = false; + let tester = ' '+ it.kb + ' '; + + // reset previous history and ratings + if (wi == 1) { + it.r = 0; + it.history = []; + } + + + // rate word-match > start-match > simple-match + // ... up to 8 points + + if (tester.indexOf(' '+ w +' ') != -1) { + it.r += 9; + it.history.push({ w: w, rate: 9 }); + matched = true; + } + else if (tester.indexOf(' '+ w) != -1) { + it.r += 5; + it.history.push({ w: w, rate: 5 }); + matched = true; + } + else if (tester.indexOf(w) != -1) { + it.r += 2; + it.history.push({ w: w, rate: 2 }); + matched = true; + } + + // rate `near-to-start` matching .. up to 7p + // rate `earlyness` of word in query .. up to 7p + + if ((mi = tester.indexOf(' '+w)) != -1) { + let fc1 = 100 - ((mi < 99) ? mi : 99); // near-to-start factor + let fc2 = wc - wi + 1; // query earlyness factor + let r1 = Math.floor(7*fc1/100); + let r2 = Math.floor(7*fc2/wc); + + it.r += (r1 + r2); + it.history.push({ w: w, left: [fc1, r1], early: [fc2, r2] }); + } + if (matched) sf.push(it); + }); + + if ((sf.length > (_maxResults + Math.floor(_maxResults/2))) + || (wi == 1) ) { + // ..if pot has a fair amount (= max + 50%) of results + // ..or these are results of '1st-query-word' + // set sf as new source + pot.lenght = 0; pot = []; + pot = JSON.parse(JSON.stringify(sf)); // copy by value + + } else { + // else.. keep the source list and increase of 'so-far rating' + // console.log('found small list', sf, pot) + pot.forEach( it => { + sf.forEach( si => { + if (it.id == si.id) { + it.r += 10; + it.history.push({ w: w, plus: '+10'}); + } + }); + }); + } + }); + + // sort results, get max-list of best rated + results = (pot.length > _maxResults) + ? pot.sort(compare_rate).slice(0, _maxResults) + : pot.sort(compare_rate) + + if (options.debug) console.log(results); + + return results; + } + + // suggestions caller (router function) + // arguments: + // * qOrig : original query string + // ** list : callback array structure to host results + // --- + var isuggest = function(qOrig, list) { + var results; + + qSanit = sanitize_GR(qOrig); // sanitize greek accended chars + + // TODO: + // check if all source-lists are ready + // if not you need to wait ... + // via async promishes or synced timouts + + /// // DEPRECATED: Suppport for eys-code search + /// // if query seems to be some king of 'code/id' + /// if (qSanit.length>2 && qSanit.match(/^[0-9]+$/) != null) { + /// results = search_by_code(qOrig); + /// + /// } else { + /// // string match procedure with suggestions engine + results = suggestions_engine(qOrig); + /// } + + list(results); + } + + // var rsfoot = document.createElement('div'); + // rsfoot.setAttribute("id", "retrosearch-footer"); + // $('#retrosearch-footer').html('Multi Search'); + + /* + jQuery(function() { // on document ready code ////////////////////////// + + // UI-dependent code + // uses reference to specific document element (passed via options) + // ----------------------------------------------------------------------- + const searchBox = $(options.search_tag); + searchBox.typeahead( + { + hint: true, + highlight: true, + minLength: 1 + }, + { + limit: _maxResults, // +1 for extra button + // name: 'kwlinks', + displayKey: 'w', + source: isuggest, + templates: { + suggestion: function(data) { + return `
${data.w}Alfa, Beta and Gamma
`; + }, + + footer: '
Multi Searh
', + + empty: '
Δεν υπάρχει στο κωδικολόγιο του καταστήματος
' + } + } + ) + .bind("typeahead:selected", function(obj, datum, name) { + if (datum.hasOwnProperty('id')) { // ** selected: PRODUCT + + // $('#js-add-product-to-order').attr('disabled', false); + // fill_fields(datum.id, datum.sc, datum.x, datum.w, 1, datum.bc, datum.eu, datum.stk, datum.img); + if (options.debug) console.log('selected: ', datum.id, datum.w); + + // GOTO product page + window.location.href = 'product_list?product=id-' + datum.id; + + // $("#product-quantity").trigger('focus'); + + } + else { // selected: SUGGESTION + + $('.typeahead').typeahead('val','').trigger('blur'); + $('.typeahead').typeahead('val', datum.w +' ') + .trigger("query"); + // give some time to the engine to calculate results + // then fire focus again... + setTimeout(() => { $('.typeahead').trigger('focus'); }, _timeout_ms); + } + + }) + .bind("typeahead:cursorchange", function( event, obj) { + // track cursor-chane to handle special keys after a final product is selected + + if (typeof obj === 'object' + && !Array.isArray(obj) && obj !== null) { + + + // console.log(obj); + // var liObj = $(`.tt-menu .tt-dataset .tt-suggestion[data-id="${obj.id}"]`) + // var c = liObj.html(); + // liObj.html = c + '\n\n_'; + // liObj.html = c; + + var y = $('.tt-menu').scrollTop(); + let ou = vwOverUnder( + document.querySelector(`.tt-menu .tt-suggestion[data-id="${obj.id}"]`), + document.querySelector('.tt-menu') + ); + console.log('y:',y, 'obj:', obj, 'o/u:', ou); + $('.tt-menu').scrollTop( y - ou * options.tolerance); + + // TODO: + // need to park the cursorChanged-div into tt-menu veiwport (??) + // check: https://stackoverflow.com/questions/75002332/check-if-child-element-is-100-visible-inside-a-parent-div-that-has-overflow-hid + + } + + + // TODO: + // handle exception where obj is undefined; + // this occures... + // when cusror returns from suggestions list back to the search field + + if (typeof obj === 'undefined') cursor_on = { none: true }; + else if (obj.hasOwnProperty('id')) cursor_on = obj; + else cursor_on = { none: true }; + }) + .bind('typeahead:opened', function(e) { + console.log('attach multisearch option if not exist'); + }); + + // TRACK user search attempt /////////////////////////////////////////////// + + + // $('.typeahead').on('typeahead:opened', function(e) { + // console.log('attach multisearch option if not exist'); + // }); + + $('.typeahead').on('keyup', function(e) { + if (_isReady) { + // console.log('on:', cursor_on); + // console.log('key:', e.key); + if ((e.key == ' ') && cursor_on.hasOwnProperty('id')) { + + // product is actually selected + var datum = cursor_on; + + // fill_fields(datum.id, datum.sc, datum.x, datum.w, 1, datum.bc, datum.eu, datum.stk, datum.img); + $("#product-quantity").trigger('focus'); + e.preventDefault(); + + } else { + if (e.key === "Enter") { + + // if curson is not on some option + if ((typeof curson_on === 'undefined') || (curson_on.none == true)) { + + // do a common search + if (options.debug) console.log('Do a Non-Suggestions search', searchBox.val()); + + // DEPRICATED: var location = encodeURI('/product_list?productSearch=%'+ searchBox.val() +'%'); + + // search_results = common_search(searchBox.val()); + // TODO: + console.log('DO A COMMON_SEARCH'); + + + } else { + // launch a product page + var location = '/product_list?product=id-'+ cursor_on.id; + if (options.debug) console.log('product', cursor_on.id, cursor_on.w); + + // TODO: + console.log('GO TO PRODUCT PAGE', location) + } + // window.location.href = location; + } + } + } + }); + + }); + */ + + // sub-module (start) + //////////////////////////////////////////////////////////////////////////// + + function update_common_search_results(q, results) { + let queries = getSessionObj('sr'); + let newSRlist = []; + let isnewQ = true; + if (queries === null) { + setSessionObj('sr', [{ + q: q, + result: result, + t: + new Date() + }]); + return true; + + } else { + + queries.forEach(it => { + if (it.q == q) { + newSRlist.push({ + q:q, + result: result, + t: + new Date() + }); + isnewQ = false; + } else { newSRlist.push(it); } + }); + + if (isnewQ) { + newSRlist.push({ + q:q, + result: result, + t: + new Date() + }); + } + + return true; + } + } + + + + //////////////////////////////////////////////////////////////////////////// + // sub-module (end) + + + function common_search(query) { + // clear ; sanitize ; split + var qAr = keyboardize( sanitize_GR( clean_text(query) ) ).toLowerCase().split(' '); + + // if last item is empty, remove it + if ((qAr.slice(-1) == ' ') || (qAr.slice(-1) == '')) qAr.pop() + + var results = _products; + + // for each key fitler results + qAr.forEach( key => { + results = key_sublist(key, results) + }); + + // echo products (and prepare list to POST) + var list_ = []; + results.forEach( item => { + if (options.debug) console.log(item.id, ':', item.w); + list_.push(item.id) + }) + + // *** TODO: keep results in local storage (or on session storage) + + // update_common_search_results(query, list_); + + let l = list_.join(','); + var url = encodeURI(`${options.visualize_search_results_url}?search=${query}&eys_code=${l}`); + + console.log('common search: search query > location = search') + window.location.href = encodeURI(`${options.visualize_search_results_url}?search=${query}`); + + } + + /** return from list only items that include 'key' + */ + function key_sublist(key, list) { + var result = []; + list.forEach( item => { + if (item.kb.includes(key)) { + result.push(item); + } + }); + + return result; + } + +} + + +/** test script + * --- + * pl = getSessionObj('prd'); wl = ['coca', 'xvris', 'zaxarh', '2x1']; + * pot = pl; + * console.log(+ new Date()); + * wl.forEach( w => { + * let sf = []; + * for(i=0 ; i < pot.length; i++) { if (pot[i].kb.includes(w)) sf.push(pot[i]); } + * pot.lenght = 0; pot = sf; + * }); + * console.log(+ new Date(), pot); + * + * + ** test performance for vs foreach + * --- + * pl = getSessionObj('prd'); console.log('started', + new Date()); + * for(j=0; j<50; j++) { for(i=0; i { let x = it.kb; }); } + * console.log('ended', + new Date()); +**/ \ No newline at end of file diff --git a/pieces/suggest.js b/pieces/suggest.js new file mode 100644 index 0000000..9c37efb --- /dev/null +++ b/pieces/suggest.js @@ -0,0 +1,902 @@ +/** (Search) SUGGESTIONS ENGINE + * --------------------------------------------------------------------------- + * + * Operates in dual mode; + * -- suggestions engine (interactive) + * -- classic-like mode (passive) + * + * TODO: + * CRITICAL: (optimization) + * Search initialization uses quite a lot of network sources; + * thus it should be started in a later time; + * lets say ... after `x` seconds + * or... when document/core-ui-elements are ready + * + * @parametres (json) : options + * --- + * @var keywords_json (sring) : endpoint url of linked keywords structure + * @var products_json (string) : endpoint od product descriptions + * @var search_tag (string) : selector of field that shall act as typeahead-suggestions + * @var visualize_search_results_url (str) : url that will visualize the sended "results-page" + * @var debug (bool) : if true sends several debug console messages; if false mesagges are eliminated + */ + +suggestions_module({ + keywords_json: 'https://storage.googleapis.com/pythia-files/uploads/json/emarket-keywords.json', + products_json: 'https://storage.googleapis.com/pythia-files/uploads/json/emarket-products.json', + search_tag: '#tagsInput', + visualize_search_results_url: '/product_list', + debug: ((location.hostname == 'localhost') || (location.hostname == '127.0.0.1')) +}); + +function suggestions_module(options) { + + /** CONTENTS + * + * +1: Variables + * + * +2: Purify string functions + * + keyboardize + * + sanitize_GR + * + clean + * + mark_explicit_links + * + * +3: Supplementary function (vanilla js) + * + ajax_get(url, callback) + * + createNgram (fuzzy) + * + checkSimilarity (fuzzy) + * + check_match + * + is_exact_match + * + match_one + * + * +4: Actual data loading (async) + * + * +5: Suggestions Engine (jQuery) + * + suggestions_engine + * + */ + + console.log('executing suggestions...'); + + + /** 1. VARIABLES + * ------------------------------------------------------------------------- + *////////////////////////////////////////////////////////////////////////// + + var _kwlinks; // keyword links (word-connections; imported via ajax-get) + var _products = []; // all products (imported via ajax-get) + + // setup options + var _maxResults = 24; // limit suggestions + var _blendProds = 4; // minimum final-produncts to blend with next-word suggestions + var _timeout_ms = 100; // time (in ms) for the search engine to find matches (before rendering) + var _allowFuzzy = true; // enable|disable fuzzy search + var _fuzzyLimit = .5; // minimum bigram score for being considered a match + var _Ngram_base = 2; // number of N in Ngram spliting algorithm + var _isReady = false; // whether the searchbox is ready to be used + + // product keywords + var keywordsURL = options.keywords_json; + + var cursor_on = { none: true }; // what product is highlighted; if not on product then { none: true } + + + + /** 2.PURIFY STRING FUNCTIONS + * ------------------------------------------------------------------------- + *////////////////////////////////////////////////////////////////////////// + + + /** keyboardize + * ------------------------------------------------------------------------- + * translates string to keyboard-latin keys + * (the ones that used whan typing each letter of the word) + * + * @param str (string): original string (utf8 of latin or greek subgroups) + * @return (string): latin/ascii equivalent string + */ + + // cache (keeo in global) any-character to keyboard-latin mapping + // --- -- -- - - - + var ORiGiNal = 'ςερτυθιοπασδφγηξκλζχψωβνμΕΡΤΥΘΙΟΠΑΣΔΦΓΗΞΚΛΖΧΨΩΒΝΜάέήίόύώϊΐϋΆΈΉΊΌΎΏΪΫQWERTYUIOPASDFGHJKLZXCVBNMqwertyuiopasdfghjklzxcvbnm0123456789- '.split(''); + var kbKeyZed = 'sertyuiopasdfghjklzxcvbnmertyuiopasdfghjklzxcvbnmaehioyviiyaehioyviyqwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnm0123456789- '.split(''); + const map = new Map(); + for (var i=0; i { + ap = pair.split(' '); + accented_vowels.push({ + a: ap[0], // accented + p: ap[1] // pure = non accended + }); + }) + + // the actual `sanitize_GR` function code + // --- -- -- - - - + function sanitize_GR(str) { + + str = str.toLowerCase(); + + // replace accended vowels with pure ones + accented_vowels.forEach( v => { + str = str.replaceAll(v.a, v.p); + }); + + // replace sigma on the end of words + str = str + ' '; + str = str.replaceAll('σ-', 'ς-'); + str = str.replaceAll('σ ', 'ς '); + + return str; + } + + + /** clean text + * --- -- -- - - - + * removes non keyword characters [+ . , !] and internal multiple-spaces + * @param txt (string): product description + */ + function clean_text(txt) { + return txt.replace('+',' ').replace('.',' ').replace(',',' ') // change to space + .replace('!','').replace('\"', '') // remove character + .replace(' ',' ').replace(' ',' '); // remove multiple spaces + } + + + + /** replaces (correcting descriptions) + * == construct unequivocally liked words ////////////////////////////////// + * ------------------------------------------------------------------------- + * + * NOTE: TODO: + * in future implementations multi-word keywords + * may use the non-breaking space as conecting character (\u00A0) instead of dush (-) + * (or maybe both of them) + * + * also TODO: + * in future implementaions linked words may passed via some endpoint + */ + replaces = []; + replaceSource = [ + '3Α;3-ΑΛΦΑ', + '3 ΑΛΦΑ;3-ΑΛΦΑ', + 'HEAD & SHOULDERS;HEAD&SHOULDERS', + 'HEAD N SHOULDERS;HEAD&SHOULDERS', + 'W.K Kellogg; W-K-Kellogg', + 'W.K Kellogg;', + '7 DAYS;7-DAYS', + '7 UP;7UP', + '7-UP;7UP', + 'ΜΠΑΡΜΠΑ ΣΤΑΘΗ;ΜΠΑΡΜΠΑ-ΣΤΑΘΗΣ', + 'ΜΠΑΡΜΠΑ ΣΤΑΘΗΣ;ΜΠΑΡΜΠΑ-ΣΤΑΘΗΣ', + 'COCA COLA;COCA-COLA', + 'J P. CHENET; J.P.CHENET', + 'J.P. CHENET; J.P.CHENET', + 'COCACOLA;COCA-COLA', + 'NES CAFE;NESCAFE', + 'NES-CAFE;NESCAFE', + 'LE PETIT MARSEILLAIS;LE-PETIT-MARSEILLAIS', + 'PETIT MARSEILLAIS;PETIT-MARSEILLAIS', + 'Το Μάννα;Το-Μάννα', + 'Χωρίς Γλουτένη;Χωρίς-Γλουτένη', + 'Χωρίς Ζάχαρη;Χωρίς-Ζάχαρη', + 'Χωρίς Αλάτι;Χωρίς-Αλάτι', + 'Χωρίς Λακτόζη;Χωρίς-Λακτόζη', + 'Χωρίς Συντηρητικά;Χωρίς-Συντηρητικά', + 'Χωρίς Αλκοόλ;Χωρίς-Αλκοόλ', + 'Χωρίς Kαφεϊνη;Χωρίς-Kαφεϊνη', + 'Χωρίς Kαφεΐνη;Χωρίς-Kαφεϊνη', + 'Χωρίς Γλυκάνισο;Χωρίς-Γλυκάνισο', + 'Χωρίς Ανθρακικό;Χωρίς-Ανθρακικό', + 'Υψηλής Παστερίωσης;Υψηλής-Παστερίωσης', + 'Ολικής Άλεσης;Ολικής-Άλεσης', + 'Ολικής Aλέσεως;Ολικής-Aλέσεως', + 'Χαρτί Υγείας;Χαρτί-Υγείας', + 'ρολό υγείας;ρολό-υγείας', + 'χαρτί τουαλέτας;χαρτί-τουαλέτας', + 'Χαρτί Κουζίνας;Χαρτί-Κουζίνας', + 'ρολό κουζίνας;ρολό-κουζίνας', + 'Μπάρες Δημητριακών;Μπάρες-Δημητριακών', + 'Ας Μαγειρέψουμε;Ας-Μαγειρέψουμε', + 'ΚΡΙΣ ΚΡΙΣ;ΚΡΙΣ-ΚΡΙΣ', + 'ΚΡΙΣΚΡΙΣ;ΚΡΙΣ-ΚΡΙΣ', + 'ΚΡΙ ΚΡΙ;ΚΡΙ-ΚΡΙ', + 'ΚΡΙΚΡΙ;ΚΡΙ-ΚΡΙ', + 'ΕΛ ΓΚΡΕΚΟ;ΕΛ-ΓΚΡΕΚΟ', + 'ΕΛΓΚΡΕΚΟ;ΕΛ-ΓΚΡΕΚΟ', + 'FREE STEP;FREE-STEP', + 'EL SABOR;EL-SABOR', + 'ELSABOR;EL-SABOR', + 'DOUWE EGBERTS;DOUWE-EGBERTS', + 'DOUWEEGBERTS;DOUWE-EGBERTS', + 'ΕΝ ΕΛΛΑΔΙ;ΕΝ-ΕΛΛΑΔΙ', + 'ΕΝΕΛΛΑΔΙ;ΕΝ-ΕΛΛΑΔΙ', + 'SPIN SPAN;SPIN-SPAN', + 'SPINSPAN;SPIN-SPAN', + 'CRETA-FARMS;CRETA-FARM', + 'CRETA-FARM;CRETA-FARM', + 'CRETAFARM;CRETA-FARM', + 'Ολες-τις-Χρήσεις;Ολες-τις-Χρήσεις', + 'Χωρίς προσθήκη ζάχαρης;Χωρίς-ζάχαρη', + 'φρουι ζελε, φρουί-ζελε', + 'DR BECKMANN, DR-BECKMANN' + ]; + replaceSource.forEach( it => { + st = sanitize_GR( + it.toLowerCase() + ).split(';'); + replaces.push({ + src: ' '+ st[0] +' ', // encolse between spaces + trg: ' '+ st[1] +' ' // to separate from before/after words + }); + }); + + /** mark_explicit_links + * + * mark linked words shall be handled as one-(key)word + * also, edit common mistakes with suggested replaces + * + * @param str + * @return + */ + function mark_explicit_links(str) { + str = ' '+ str +' '; + replaces.forEach( it => { str = str.replaceAll(it.src, it.trg); }); + return str.replaceAll(' ', ' ').trim(); + } + + + + + + /** 3. SUPPLEMENTARY FUNCTIONS + * ------------------------------------------------------------------------- + *////////////////////////////////////////////////////////////////////////// + + + // TODO: + // exclude some generic non-critial words when proccessing user's query + // ** example code to work with: + // var ignoredKeys_kb = []; // keywords to ignore (in kb-format) + // 'μας με σε για του της των από στο στον &'.split(' ').forEach(w => { ignoredKeys_kb.push(keyboardize(w)); }); + + // pure JS ajax GET request; return data as JSON + // no fancy things like UTF8; if needed use base64 + function ajax_get(url, callback) { + var xmlhttp = new XMLHttpRequest(); + xmlhttp.onreadystatechange = function() { + if (xmlhttp.readyState == 4 && xmlhttp.status == 200) { + try { + var data = JSON.parse(xmlhttp.responseText); + } catch(err) { + if (options.debug) console.log(err.message + " in " + xmlhttp.responseText); + return; + } + callback(data); + } + }; + xmlhttp.open("GET", url, true); + xmlhttp.send(); + } + + + /** Ngram fuzzy match algorithm + * (simple and fast) + */ + const createNgram = (word, n) => { // Ngram creation + if (word.length <3) return word; + const vector = []; + for (let i = 0; i < word.length-n+1; ++i) { + vector.push(word.slice(i, i + n)); + } + return vector; + }; + const checkSimilarity = (a, b) => { // Ngram match score + if (!_allowFuzzy) return 0; + + if (a.length > 0 && b.length > 0) { + const aNgram = createNgram(a, _Ngram_base); + const bNgram = createNgram(b, _Ngram_base); + let hits = 0; + for (let x = 0; x < aNgram.length; ++x) { + for (let y = 0; y < bNgram.length; ++y) { + if (aNgram[x] === bNgram[y]) { + hits += 1; + } + } + } + if (hits > 0) { + const union = aNgram.length + bNgram.length; + return (2.0 * hits) / union; + } + } + return 0; + }; + + + + + + // Search Endine's match functions + ////////////////////////////////////////////////////////////////////////////// + + /** check_match + * --- + * check if a searching string -> query (string/latin in kb-format) + * matches an item of the array of synonyms -> chkArr (array of utf-8/strings) + * + * + option to use fyzzy (bigram) match + * + * @return: matched string (utf-8) --or-- false (if not matched) + */ + function check_match( query, chkArr, fuzzy = false ) { + var result = ''; + var found = false; + + if (query == ' ') return chkArr[0]; + + chkArr.forEach( chk => { + if (!found) { + chk_kb = keyboardize(chk); + if ( (chk_kb.indexOf( query ) !== -1) || (fuzzy && (checkSimilarity(chk_kb, query) > _fuzzyLimit)) ) { + found = true; + result = chk; + } + } + }); + return found ? result : false; + } + + /** is_exact_match + * + * check if a searching string -> query (string/latin in kb-format) + * matches exactly an item of the array of synonyms -> chkArr (array of utf-8/strings) + * + * @param query (string): searching string; string/latin in kb-format + * @param chkArr (array): array of synonyms; (array of utf-8/strings) + * @return (boolean): true|false + */ + function is_exact_match( query, chkArr ) { + found = false; + chkArr.forEach( w => { if (keyboardize(w) == query) found = true }); + return found; + } + + /** match_one + * + * check if at-least-ONE item from an array of query-words -> qArr (array of string/latin in kb-format) + * matches any item of an array of synonyms -> chkArr (array of utf-8/strings) + * + * @return (boolean) true|false + */ + function match_one( qArr, chkArr ) { + found = false; + qArr.forEach( query => { + chkArr.forEach( w => { if (keyboardize(w) == query) found = true }); + }); + return found; + } + + + + + /** 4. ACTUAL DATA LOADING + * ------------------------------------------------------------------------- + *////////////////////////////////////////////////////////////////////////// + + + + // TODO: + // control completion of async loads via .then() rather by this custom structrure + // Need to rewrite the folllowing code ............................. from here + // ........................................................................... + // ........................................................................... + + + /** workline + * ------------------------------------------------------------------------- + * custom object/data-structure + * to track status/completion of async svents + * (it does the job using a special set method) + */ + var workline = { + + trackerJL : 0, + set jsonLoaded(x) { + this.trackerJL = x; + + // fire event on certain values + if (x == 3) { + if (options.debug) console.info('suggestion-engine requirements fulfilled'); + _isReady = true; + // code to execute + // ... + } + }, + get jsonLoaded() { return this.trackerJL; } + }; + + + /** LOAD DATA (from endoints) + * --------------------------------------------------------------------------- + */ + + ajax_get( keywordsURL, function(data) { // get _kwlinks + _kwlinks = data; + if (options.debug) console.log('...keywords loaded;'); + workline.jsonLoaded++; + }); + + function load_store_products(storeID) { + ajax_get(options.products_json, function(data) { // get stor's _products + _products = data; + _products.forEach(p => {p.kb = keyboardize(p.w).toLowerCase()} ); + if (options.debug) console.log('...products loaded;'); + workline.jsonLoaded++; + CURRENT_STOREs_CATALOG = storeID; + }); + } + + var STORE = { id: 904 }; + + if (STORE.id != 0) load_store_products(STORE.id); + + // ........................................................................... + // ........................................................................... + // ................................................................ up to here + + + + + /** 5. SUGGESTIONS ENGINE + * ------------------------------------------------------------------------- + *////////////////////////////////////////////////////////////////////////// + + + workline.jsonLoaded++; // notify workline that jQuery is ready!! + + + // suggestions engine ////////////////////////////////////////////////// + // --- + function suggestions_engine(qOrig) { + var results = []; // suggestions to respond + var proList = []; // list of products (for all suggestions) + var commonL = []; // list of common products (for multiple suggestions) + var possibleNext = []; // list of possible next suggestions + + var root, last; + + var space_ended = (qOrig.slice(-1) == ' ') ? true : false; + + // clean and sanitize and mark links onto q(uery) string + var q = mark_explicit_links( sanitize_GR( clean_text(qOrig) ) ); + + // TODO: + // construct direct-linked words + // = do unequivocally replaces + // steps: + // 1. replace accented vowels with non accented ones + // 2. replace `/some pattern/gi , 'SOME-REPLACE-PATTERN'` + // --- -- -- - - - + // test: + // oneliner: var str = 'αλφα βητα ΑΛΦΑ Βητα world'; var src = 'αλφα βητα'; var reg = new RegExp(src, "gi"); var replacedOnce = str.toLowerCase().replace(reg, 'α-β'); console.log(replacedOnce); + + var qAr = q.split(' '); // split to words + if (space_ended) qAr.push(' '); // if space-end existed, push a space to query array + + if (qAr.slice(-1) == "") { + qAr.pop(); + } + + if (options.debug) console.log(qAr); + + if (qAr.length == 1) { // suggest 1st word ////////////////////// + + var kbq = keyboardize(q); + + // loop through root-words + // ... to match all possible suggestions; + _kwlinks.forEach( it => { + chk = check_match(kbq, it.w, true); + + if ( chk != false ) { + results.push({ w: chk }); + + // ... also keep possible products in a list + it.c.forEach( wo => { // for every Word-Link-Node + if (proList.length < _maxResults + 2) { // NOTE: about +2 (bellow) + + // concatenate this-suggestion's product sub-list (wo.p) + // to all-suggestions posiible products-list (proList) + proList = proList.concat(wo.p); + // keep unique products in the products-list + proList = proList.filter((item, i, ar) => ar.indexOf(item) === i); + } + }); + } + + }); + } + + if (qAr.length == 2) { // suggest 2nd word ///////////////////////// + root = qAr[0]; + last = qAr[1]; + kbroot = keyboardize(root); + kblast = keyboardize(last); + + // TODO: + // change [_kwlinks.forEach] to for loop + // --- + _kwlinks.forEach( it => { // locate the ... + if (is_exact_match(kbroot, it.w)) { // exact match of root-word + + it.c.forEach ( wo => { // loop the word-links ... + chk = check_match(kblast, wo.w, true); + if ( chk !== false ) { // if a match is found + results.push({ // keep suggestion + w: root +' '+ chk, + f: wo.f + }); + if (proList.length < _maxResults + 2) { // plus... + proList = proList.concat(wo.p); // keep products-list + proList = proList.filter((item, i, ar) => ar.indexOf(item) === i); + } + } + }); + + } + }); + } + + if (qAr.length > 2) { // suggest N-th word (N>2) /////////////// + root = qAr.shift(); // isolate first item of qAr + last = qAr.pop(); // isolate last item too + // now qAr includes only the items after root and before last; + // so qAr includes all already selected suggestions (but root) + + // prepare/cache kb-formated string for any key we're going to use + var kb_qAr = []; // array of selected suggestions in kb-format + qAr.forEach( w => { kb_qAr.push(keyboardize(w)); }) + kbroot = keyboardize(root); + kblast = keyboardize(last); + + // TODO: + // change [_kwlinks.forEach] to for loop + // --- + _kwlinks.forEach( it => { + if (is_exact_match(kbroot, it.w)) { // locate root-word + + // calculate list of common items/products (commonL) + // for selected suggestions + is1stOcc = true; // 1st occurance flag + + it.c.forEach ( swo => { + if (match_one(kb_qAr, swo.w)) { + // swo is one of the already selected suggestions + // so... update the common-(products)-L(ist) + if (is1stOcc) { + commonL = swo.p; // init list (on 1st occurance) + is1stOcc = false; + } + else { + // caclulate list of common products + // = intersection of (so-far) commonL and swo.p + // commonL = commonL.filter(value => swo.p.includes(value)); + commonL = commonL.filter(function(n) { return swo.p.indexOf(n) !== -1; }); + } + } + else { // if swo is not already selected + // then This is a possible NEXT suggestion + possibleNext.push(swo); + } + }); + + // Now that we have all the possible next suggestions + // we'll match them with the last word of the query + + possibleNext.forEach( poss => { // for tthe possible next suggestions + // if last-word-of-query matches possible word(s) + // and list of word's products has commons with commonL + // then THiS is a Valid-Next-Suggestion + chk = check_match(kblast, poss.w, true); + if (chk !== false) { + // check intersection of commonL and suggestion's product-lists + tempL = commonL.filter(value => poss.p.includes(value)); + if (tempL.length > 0) { + results.push({ + w: root +' '+ qAr.join(' ') +' '+ chk, + f: poss.f + }); + // update proList too + proList = proList.concat(tempL); + } + } + }); + } + + }); + } + + // NOTE: about +2 (vs +1) + // after having calculated next suggestions and a banch of possible products + // the proccedure is going to decide what data will return; + // if pro(ducts)List includes less items than maximum suggestions + // ... this will be the array to return. So + // ... +2 ensures that this list will not become shorter than this limit + + // calculate unique products + // (credit: https://stackoverflow.com/questions/11246758/) + let unique = proList.filter((item, i, ar) => ar.indexOf(item) === i); + + + + if (unique.length < (_maxResults +1)) { // IF list is small ...... + + // serve products instead of suggestions + // ... + results = []; + notOnThisStore = [] + unique.forEach( pr => { + for (i=0 ; i< _products.length-1 ; i++) { // for makes things faster + pi = _products[i]; + if (pi.id == pr) { + results.push(pi); + break; + } + } + }); + + } else { // remove forced link character '-' from suggestions ..... + var dirty_results = results; + results = []; + for (i=0 ; i< dirty_results.length ; i++) { + results.push({ w: dirty_results[i].w.replaceAll('-', ' ') }) + } + } + + return results; + } + + // simple, fast search products by numeric code property + // --- + function search_by_code( num ) { + const str = num.toString(); + var results = []; + var p; + for (i=0 ; i< _products.length-1 ; i++) { + p = _products[i]; + if (results.length > _maxResults) { break; } + if ( (p.bp+'-'+p.bc).indexOf(str) !== -1 ) { results.push(p) } + } + return results; + } + + // suggestions caller (router function) + // arguments: + // * qOrig : original query string + // ** list : callback array structure to host results + // --- + var isuggest = function(qOrig, list) { + var results; + + qSanit = sanitize_GR(qOrig); // sanitize greel accended chars + + // TODO: + // check if all source-lists are ready + // if not you need to wait ... + // via async promishes or synced timouts + + // if query seems to be some king of 'code/id' + if (qSanit.length>2 && qSanit.match(/^[0-9]+$/) != null) { + results = search_by_code(qOrig); + + } else { + // string match procedure with suggestions engine + results = suggestions_engine(qOrig); + + } + list(results); + } + + /** + jQuery(function() { // on document ready code ////////////////////////// + /** + + // UI-dependent code + // uses reference to specific document element (passed via options) + // ----------------------------------------------------------------------- + const searchBox = $(options.search_tag); + searchBox.typeahead( + { + hint: true, + highlight: true, + minLength: 1 + }, + { + limit: _maxResults, + name: 'kwlinks', + displayKey: 'w', + source: isuggest, + templates: { + suggestion: function(data) { + if (data.id) + return '
'+ data.w +'
'; + return '
'+ data.w +'
'; + }, + empty: '
Δεν υπάρχει στο κωδικολόγιο του καταστήματος
' + } + } + ) + .bind("typeahead:selected", function(obj, datum, name) { + if (datum.hasOwnProperty('id')) { // ** selected: PRODUCT + + // $('#js-add-product-to-order').attr('disabled', false); + // fill_fields(datum.id, datum.sc, datum.x, datum.w, 1, datum.bc, datum.eu, datum.stk, datum.img); + if (options.debug) console.log('selected: ', datum.id, datum.w); + + // TODO: GOTO product page + window.location.href = 'product_list?product=id-' + datum.id; + + // $("#product-quantity").trigger('focus'); + + } + else { // selected: SUGGESTION + + $('.typeahead').typeahead('val','').trigger('blur'); + $('.typeahead').typeahead('val', datum.w +' ') + .trigger("query"); + // give some time to the engine to calculate results + // then fire focus again... + setTimeout(() => { $('.typeahead').trigger('focus'); }, _timeout_ms); + } + + }) + .bind("typeahead:cursorchange", function( event, obj) { + // track cursor-chane to handle special keys after a final product is selected + + // TODO: + // handle exception where obj is undefined; + // this occures... + // when cusror returns from suggestions list back to the search field + + if (typeof obj === 'undefined') cursor_on = { none: true }; + else if (obj.hasOwnProperty('id')) cursor_on = obj; + else cursor_on = { none: true }; + }); + + // TRACK user search attempt /////////////////////////////////////////////// + $('.typeahead').on('keyup', function(e) { + if (_isReady) { + // console.log('on:', cursor_on); + // console.log('key:', e.key); + if ((e.key == ' ') && cursor_on.hasOwnProperty('id')) { + + // product is actually selected + var datum = cursor_on; + + // fill_fields(datum.id, datum.sc, datum.x, datum.w, 1, datum.bc, datum.eu, datum.stk, datum.img); + $("#product-quantity").trigger('focus'); + e.preventDefault(); + + } else { + if (e.key === "Enter") { + + // if curson is not on some option + if ((typeof curson_on === 'undefined') || (curson_on.none == true)) { + + // do a common search + if (options.debug) console.log('Do a Non-Suggestions search', searchBox.val()); + + // DEPRICATED: var location = encodeURI('/product_list?productSearch=%'+ searchBox.val() +'%'); + + search_results = common_search(searchBox.val()); + + + } else { + // launch a product page + var location = '/product_list?product=id-'+ cursor_on.id; + if (options.debug) console.log('product', cursor_on.id, cursor_on.w); + + console.log('go to product', location) + } + // window.location.href = location; + } + } + } + }); + + }); + */ + + + /* + function common_search(query) { + // clear ; sanitize ; split + var qAr = keyboardize( sanitize_GR( clean_text(query) ) ).toLowerCase().split(' '); + + // if last item is empty, remove it + if ((qAr.slice(-1) == ' ') || (qAr.slice(-1) == '')) qAr.pop() + + var results = _products; + + // for each key fitler results + qAr.forEach( key => { + results = key_sublist(key, results) + }); + + // echo products (and prepare list to POST) + var list_ = []; + results.forEach( item => { + if (options.debug) console.log(item.id, ':', item.w); + list_.push(item.id) + }) + + let l = list_.join(','); + var url = encodeURI(`${options.visualize_search_results_url}?search=${query}&eys_code=${l}`); + + if ($('.js-categories.selected').length + || $('.js-checkout.selected').length + ) { + url = encodeURI(`api/v1/products?eys_code=${l}&q=${query}`); + console.log('common search : fetch results > history.push', url, query); + fetchSearchProducts(url, query); + window.history.pushState('search', null, '/product_list?search='+query); + } else { + console.log('common search: search query > location = search') + window.location.href = encodeURI(`${options.visualize_search_results_url}?search=${query}`); + } + + // Redirect with POST (template) + // --- -- -- - - - + // var form = $([ + // `
`, + // '', + // '
' + // ].join('')); + // $('body').append(form); + // form.submit(); + + } + */ + + /** return from list only items that include 'key' + */ + function key_sublist(key, list) { + var result = []; + list.forEach( item => { + if (item.kb.includes(key)) { + result.push(item); + } + }); + + return result; + } +} \ No newline at end of file -- cgit v1.2.3