count() in JavaScript

ki4ngel (Benoit Asselin) — Sat, 08 Dec 2007 13:11:46 GMT

The same function as count() in php.



Array.prototype.count = function() {

	return this.length;

};

Sample :



var v_array = [ 5, 10, 15, 20, 25];

document.writeln(v_array.count());  // 5

Source: AB-D.fr

in_array() in JavaScript

ki4ngel (Benoit Asselin) — Sun, 14 Oct 2007 20:25:37 GMT

The same function as in_array() in php.



Array.prototype.in_array = function(p_val) {

	for(var i = 0, l = this.length; i < l; i++) {

		if(this[i] == p_val) {

			return true;

		}

	}

	return false;

}

Sample :



var v_array = [ 5, 10, 15, 20, 25];

document.writeln(v_array.in_array(10));  // true

document.writeln(v_array.in_array(11));  // false

Source: PHP Manual in_array()

DZone Snippets: array code

count() in JavaScript

in_array() in JavaScript