randomInArray

randomInArray.js

/* 
 * Returns a random element in a function.  
 */

var randomInArray = function (anArray){
	//TODO : Check if anArray is really an array.	

	var randomIndex=Math.floor(Math.random()*anArray.length)	
	return anArray[randomIndex];
}

//Usage
myArray = ["a","b","c","d"];
randomInArray(myArray); // Will be any of "a","b","c" or "d"