JS实现键值对功能

 

       //自定义键值对对象
        function Dictionary() {
            this.data = new Array();

            this.put = function (key, value) {
                this.data[key] = value;
            };

            this.get = function (key) {
                return this.data[key];
            };

            this.remove = function (key) {
                this.data[key] = null;
            };

            this.isEmpty = function () {
                return this.data.length == 0;
            };

            this.size = function () {
                return this.data.length;
            };
        }