Question

I’m trying to call an instance’s method with a delay of 750ms. The problem is, it doesn’t work. I’ve read that there’s some sort of problem with setInterval and objects so probably there’s one with setTimeout as well.

Say I have this:

function App()
{
      this.doFoo = function (arg)
      {
          alert("bar");
      }
}

window.app = new App();
setTimeout('app.doFoo(arg)', 750);//doesn't work
app.doFoo(arg); //works

Is there a workaround? How do I go about passing the instance and function to setTimeout?

Answer 1

Try like this:

function App()
{
    this.doFoo = function (arg) {
        alert(arg);
    }
}

window.app = new App();
window.setTimeout(function() {
    window.app.doFoo('arg');
}, 750);