5 examples of 'javascript set intersection' in JavaScript

2007
intersection(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
}

3
intersection(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
}

27
function arrayIntersect(...arrays) {
28
	let sets = arrays.map(a => new Set(a))
29
	return convertSetToArray(setIntersect(...sets))
30
}

71
function 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
}

52
function 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
}