25 lines
516 B
JavaScript
25 lines
516 B
JavaScript
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function union(arra1, arra2) {
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if ((arra1 == null) || (arra2==null))
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return void 0;
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var obj = {};
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for (var i = arra1.length-1; i >= 0; -- i)
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obj[arra1[i]] = arra1[i];
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for (var i = arra2.length-1; i >= 0; -- i)
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obj[arra2[i]] = arra2[i];
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var res = [];
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for (var n in obj)
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{
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if (obj.hasOwnProperty(n))
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res.push(obj[n]);
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}
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return res;
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}
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console.log(union([1, 2, 3], [100, 2, 1, 10]));
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