text: var Map = function(){
  	
  	this.data = [];
  	
  }
  
  Map.prototype = {
  
  	put : function(key, value) {
  	
  		this.data[key] = value;	
  	},
  	
  	get : function(key) {
  	
  		return this.data[key];
  	},
  	
  	remove : function(key) {
  	
  		this.data[key] = null;
  	
  	},
  	
  	isEmpty : function() {
  	
  		return this.data.length == 0;
  	},
  	
  	size : function() {
  	
  		return this.data.length;
  	}
  
  }