Just another update

Task/Stack/JavaScript/stack-2.js

@@ -4,5 +4,5 @@ function Stack() {
     this.push  = function(element) {this.data.push(element)}
     this.pop   = function() {return this.data.pop()}
     this.empty = function() {return this.data.length == 0}
-    this.peek  = function() {return this.data[0]}
+    this.peek  = function() {return this.data[this.data.length - 1]}
 }

Task/Stack/JavaScript/stack-3.js

@@ -0,0 +1,24 @@
+function makeStack() {
+  var stack = [];
+
+  var popStack = function () {
+    return stack.pop();
+  };
+  var pushStack = function () {
+    return stack.push.apply(stack, arguments);
+  };
+  var isEmpty = function () {
+    return stack.length === 0;
+  };
+  var peekStack = function () {
+    return stack[stack.length-1];
+  };
+
+  return {
+    pop: popStack,
+    push: pushStack,
+    isEmpty: isEmpty,
+    peek: peekStack,
+    top: peekStack
+  };
+}