Testing an Array with the Array.every() Method

If you ever need to test an array to see if it passes a specified criterion, then Array.every() is the method to use. This method will run a function on each array item until it returns false.

package {
    import flash.display.Sprite;
    public class ArrayEvery extends Sprite {
		public function ArrayEvery() {

			var arr1:Array = new Array(1, 2, 4);
            var res1:Boolean = arr1.every(lessThan);

			trace("isNumeric:", res1); // Output: true

            var arr2:Array = new Array(1, 2, 50);
            var res2:Boolean = arr2.every(lessThan);

            trace("isNumeric:", res2); // Output: false
        }

        private function lessThan(element:*, index:int, arr:Array):Boolean {
            return (element < 20);
        }
    }
}