Initial Commit

map.js

@@ -0,0 +1,53 @@
+var Map = function() { this.keys = []; this.items = new Object() }
+
+// PUT
+Map.prototype.put = function(key, value) { if (!(key in this.items)) { this.keys.push(key) } this.items[key] = value; }
+Map.prototype.putAll = function(obj) { for(item in obj) { this.put(item, obj[item]) } }
+// GET
+Map.prototype.get = function(key) { return this.items[key] }
+Map.prototype.getItems = function() { return this.items }
+Map.prototype.getKeys = function() { return this.keys }
+// OTHER
+Map.prototype.size = function() { return this.keys.length }
+Map.prototype.isEmpty = function() { return (this.keys.length == 0) }
+Map.prototype.containsKey = function(key) { return (this.items[key] !== undefined) }
+Map.prototype.clear = function() { this.keys = []; this.items = new Object() }
+
+// CLONE POLYFILL
+Object.prototype.clone = function() {
+    var newObj = (this instanceof Array) ? [] : {};
+    for (var i in this) {
+        if (i == 'clone') continue;
+        if (this[i] && typeof this[i] == "object") { newObj[i] = this[i].clone(); } else { newObj[i] = this[i]; }
+    }
+    return newObj;
+}
+
+var myMap = new Map()
+
+myMap.put("firstItem", true)
+myMap.put("secondItem", "doesn't matter")
+myMap.put("firstItem", "hello world!")
+myMap.putAll({"thirdItem": 1, "forthItem": 92.123})
+
+var items = myMap.getItems()
+var item = myMap.get("firstItem")
+var contains = myMap.containsKey("firstItem")
+var keys = myMap.getKeys()
+var size = myMap.size()
+var copy = myMap.clone()
+copy.put("firstItem", false)
+var clone = copy.getItems()
+var cloneKeys = copy.getKeys()
+
+var clear = myMap.clear()
+var shouldBeZero = myMap.size()
+
+console.log(items)          // { "firstItem" : true, "secondItem": "doesn't matter" }
+console.log(item)           // "hello world!"
+console.log(contains)       // true
+console.log(keys)           // [ "firstItem", "secondItem" ]
+console.log(size)           // 2
+console.log(clone)          // { "firstItem" : false, "secondItem": "doesn't matter" }
+console.log(cloneKeys)      // [ "firstItem", "secondItem" ]
+console.log(shouldBeZero)   // 0