5 examples of 'javascript set intersection' in JavaScript

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2007intersection(other) {
2008 let result = this.toSet();
2009 for (let element of this) {
2010 if (!dart.notNull(other.contains(element))) result.remove(element);
2011 }
2012 return result;
2013}
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3intersection(other) {
4 const output = new SetPlus();
5 for (const item of this) {
6 if (other.has(item)) {
7 output.add(item);
8 }
9 }
10 return output;
11}
27function arrayIntersect(...arrays) {
28 let sets = arrays.map(a => new Set(a))
29 return convertSetToArray(setIntersect(...sets))
30}
71function intersection(arr) {
72 if (!isArray(arr)) throwTypeErr('intersection 参数不合法!');
73 let res = [];
74 each(arr, v => {
75 let i = 1;
76 for (; i < arguments.length; i++) {
77 if (!contains(arguments[i], v)) break;
78 }
79 if (i === arguments.length) res.push(v);
80 });
81 return res;
82}
52function intersection (array1, array2) {
53 let result = [];
54 array1.forEach((element) => {
55 if (array2.indexOf(element) >= 0) {
56 result.push(element);
57 }
58 });
59
60 return result;
61}

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