JavaScriptでは、クローズドと関数ですぐにカウンタを書き込みます.

        function add(){
            var sum = 0;//    
           return function (){
                sum++;//    
                console.log(sum);
            }
        }

var jishuqi = add();

        jishuqi();//1
        jishuqi();//2
        jishuqi();//3
        jishuqi();//4

        //   
        jishuqi = (function (){
            var sum = 0;//    
           return function (){
                sum++;//    
                console.log(sum);
            }
        })()
        //    
        jishuqi();//1
        jishuqi();//2
        jishuqi();//3
        jishuqi();//4