How do I sort a collection (dictionary) by a key in it we want in javascript?

Question

I use javascript dictionary for a big list , and complete it like under code

var child = { id:1, values:30 }; var array = [] ; array.push(child);

I want sorting this array by value field my problem is that I can't find a javascript method for it I can write it manually, but it is my last hope

possible duplicate of Iterate over a Javascript associative array in sorted order — Cerbrus
– Cerbrus, Commented Feb 3, 2014 at 8:22
Please google your problem before asking about it on SO. Sorting dicts has been done numerous times before, and there is plenty of info about it available. — Cerbrus
– Cerbrus, Commented Feb 3, 2014 at 8:23
i google it and i dont find any answer for sorting list of dictionary by a dictionary keys — Pnsadeghy
– Pnsadeghy, Commented Feb 3, 2014 at 8:54

KooiInc · Accepted Answer · 2014-02-03 09:04:01Z

You'll need a custom callback (aka comparerfunction) for the sorting. Something along the lines of ¹:

array.sort( function (a,b) { return +a.value - +b.value; } );

¹ I'm assuming value should be numeric and to be sure the sorting will be numeric the value property is explicitly converted to a number using +

Those + aren't necessary because String - String is String - +String, which then means String - Number and a String subtracting a number will cast the String to a Number.

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