setTimeout function reverted

Hi!

Using setTimeout like this:

setTimeout(function () {
                _this.getLocation();
                _this.storeposition();
                _this.demoeasyflow(_this.oldnum);
                _this.oldnum++;
            }, 30000); //delay is in milliseconds

```

My issue is that my functions dosent start before after 30 seconds.
First time i want setTimeout to start right away. 
How do i do that  ?