Combine two arrays in JavaScript

Question

Can I merge two arrays in JavaScript like this?

these arrays:

arr1 = [\'one\',\'two\',\'three\'];
arr2 = [1,2,3];

into

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Answer 1

You can use Array.prototype.reduce...

var arr3 = arr1.reduce(function(obj, val, i) {
    obj[val] = arr2[i];
    return obj;
}, {});

DEMO: http://jsfiddle.net/GMxcM/

{
    "one": 1,
    "two": 2,
    "three": 3
}