Bill Cheng Finish eachmapreduce

myEach.js

@@ -2,7 +2,10 @@
 
 function myEach(arr, callback) {
 
-//  CODE INSIDE HERE   //
+	for(var i = 0; i < arr.length; i++)
+	{
+		callback(arr[i], i, arr);
+	}
 
 }
 

myMap.js

@@ -1,9 +1,12 @@
 // See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/Map
 
 function myMap(arr, callback) {
-
-//  CODE INSIDE HERE   //
-
+	var result = [];
+	for(var i = 0; i < arr.length; i++)
+	{
+		result.push(callback(arr[i], i, arr));
+	}
+	return result;
 }
 
 /*

myReduce.js

@@ -1,9 +1,27 @@
 // See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/Reduce for more details
 // Don't worry about initialValue at first. You can always add it in later.
 
-function myReduce(arr, callback) {
-
-//  CODE INSIDE HERE   //
+function myReduce(arr, callback, init) 
+{
+
+	if(!init)
+	{
+		var result = arr[0];
+		for(var i = 1; i < arr.length; i++)
+		{	
+			result = callback(result, arr[i], i, arr);
+		}
+		return result;
+	}
+	else // if init
+	{
+		var result = init;
+		for(var i = 0; i < arr.length; i++)
+		{
+			result = callback(result, arr[i], i, arr);
+		}
+		return result;
+	}
 
 }