25 lines
520 B
JavaScript
25 lines
520 B
JavaScript
function merge_array(array1, array2) {
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var result_array = [];
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var arr = array1.concat(array2);
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var len = arr.length;
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var assoc = {};
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while(len--) {
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var item = arr[len];
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if(!assoc[item])
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{
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result_array.unshift(item);
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assoc[item] = true;
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}
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}
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return result_array;
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}
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var array1 = [1, 2, 3];
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var array2 = [2, 30, 1];
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console.log(merge_array(array1, array2));
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