How to sort a JavaScript array of objects by nested object property?

by

You can split the prop on ., and iterate over the Array updating the a and b with the next nested property during each iteration.

Example: http://jsfiddle.net/x8KD6/1/

var sort = function (prop, arr) {
    prop = prop.split('.');
    var len = prop.length;

    arr.sort(function (a, b) {
        var i = 0;
        while( i < len ) { a = a[prop[i]]; b = b[prop[i]]; i++; }
        if (a < b) {
            return -1;
        } else if (a > b) {
            return 1;
        } else {
            return 0;
        }
    });
    return arr;
};

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