http://snippets.dzone.com/posts Tue, 07 Oct 2008 17:19:49 GMT DZone Snippets: array code http://snippets.dzone.com/posts/show/3545 Calculates all combinations, including incomplete results. <br /><code> <br />combine([1,2]) == [[1], [2], [1,2]]; <br /></code> <br /><code> <br />var combine = function(a) { <br /> var fn = function(n, src, got, all) { <br /> if (n == 0) { <br /> if (got.length > 0) { <br /> all[all.length] = got; <br /> } <br /> return; <br /> } <br /> for (var j = 0; j < src.length; j++) { <br /> fn(n - 1, src.slice(j + 1), got.concat([src[j]]), all); <br /> } <br /> return; <br /> } <br /> var all = []; <br /> for (var i=0; i < a.length; i++) { <br /> fn(i, a, [], all); <br /> } <br /> all.push(a); <br /> return all; <br />} <br /></code> Mon, 19 Feb 2007 12:51:44 GMT http://snippets.dzone.com/posts/show/3545 troelskn (Troels)