Question

I have an input which when im clicking – i want to see alert with ‘1,2,3,4…’ (each press)

<input type='button' value='press' onclick='Clicked();'  />

 <script>
  var t
    function Clicked()
      {
        t=func;
        t();
      }  


     function func()
      {
        var count=0;
         return new  function ()   // <===  new or not new ???
          {
          count++;
          alert(count);
          }
      }
 </script>      

If im adding the 'new' in the return and click , it says : '1,1,1,1,...'

If im removing the ‘new’ it doesnt work…

My goal is to use this to get : ‘1,2,3,4…’

Can someone explain to me what happens ?

Answer 1

You need to use the returned function:

var t = func()
function Clicked() {
    t();
}  

function func() {
    var count=0;
    return function () {
        count++;
        alert(count);
    }
}

Example