How to flatten array in jQuery?

You can use jQuery.map, which is the way to go if you have the jQuery Library already loaded.

$.map( [1, 2, [3, 4], [5, 6], 7], function(n){   return n;});

Returns

[1, 2, 3, 4, 5, 6, 7]

javascript jquery arrays flatten

Use the power of JavaScript:

var a = [[1, 2], 3, [4, 5]];console.log( Array.prototype.concat.apply([], a) );//will output [1, 2, 3, 4, 5]

javascript jquery arrays flatten

Here's how you could use jquery to flatten deeply nested arrays:

$.map([1, 2, [3, 4], [5, [6, [7, 8]]]], function recurs(n) {    return ($.isArray(n) ? $.map(n, recurs): n);});

Returns:

[1, 2, 3, 4, 5, 6, 7, 8]

Takes advantage of jQuery.map as well as jQuery.isArray.

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