tal · February 25, 2014 21:11
diff --git a/prototypes.js b/prototypes.js
 Array.prototype.map = function() {}
 Array.prototype.select = function() {}
diff --git a/test.js b/test.js
 var array = [1,2,3,4,5],
    sum = 0;

 for (var i in array) {
  sum += array[i];
 }

 console.log(sum);
	Array.prototype.map = function() {}
	Array.prototype.select = function() {}