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const min = require('./min.js'); |
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const max = require('./max.js'); |
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3
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4
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class Match { |
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constructor(find, operator) { |
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this.find = find; |
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this.operator = operator || null; |
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} |
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9
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10
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check(value) { |
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if (Array.isArray(this.find)) { |
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return this.checkOperators(value, this.find.indexOf(value) < 0); |
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} |
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15
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return this.checkOperators(value, value != this.find); |
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} |
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checkOperators(value, find) { |
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if ( |
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find && |
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21
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(this.operator == true || |
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22
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this.operator == '!=' || |
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this.operator == '<>') |
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) { |
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return true; |
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} else if (!find && !this.operator) { |
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return true; |
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} else if (value > max(this.find) && this.operator == '>') { |
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return true; |
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} else if (value >= max(this.find) && this.operator == '>=') { |
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return true; |
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32
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} else if (value < min(this.find) && this.operator == '<') { |
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return true; |
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} else if (value <= min(this.find) && this.operator == '<=') { |
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return true; |
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} |
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return false; |
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} |
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40
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41
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static create(original, key, find, operator) { |
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42
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const matcher = new Match(find, operator); |
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43
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44
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return original.filter((item) => { |
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45
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let values = item[key]; |
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46
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47
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if (!values) { |
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48
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return false; |
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49
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} |
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50
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51
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values = values.toString().split(','); |
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52
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53
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return values.some(matcher.check.bind(matcher)); |
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54
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}); |
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} |
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56
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} |
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57
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58
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module.exports = function multifilter(original, key, find, operator) { |
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59
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return Match.create(original, key, find, operator); |
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60
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}; |
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61
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w3nl /
array-helpers
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The loose comparison such as
==or!=might produce some weird results for some values, unless you explicitly want to have this behavior here, better use the strict alternative.Learn more about loose comparison in Javascript.