DZone Snippets is a public source code repository. Easily build up your personal collection of code snippets, categorize them with tags / keywords, and share them with the world

Snippets has posted 5883 posts at DZone. View Full User Profile

GetElementsAt //JavaScript Function

02.14.2006
| 2983 views |
  • submit to reddit
        This function is able to get all the elements in a specific level of the array

example:

x = [-1, [[8, 22, -7], 32, [[4, 10, -2], 122]], 13];
alert(x.getElementsAt(3));


code:

//+ Jonas Raoni Soares Silva
//@ http://jsfromhell.com
Array.prototype.getElementsAt = function(level){
	var r = [], x = [], c = this, l = level, i;
	do
		if(i = c.length, !l)
			for(; i; r[r.length] = c[--i]);
		else
			for(; i; c[--i] instanceof Array && x.push(c[i], l - 1));
	while(l = x.pop(), (c = x.pop()) != undefined);
	return r;
}