Is it possible to pass an arbitrary function as parameter in Javascript where function is defined at runtime?

Asked Aug 22 '16 at 02:21

Active Aug 22 '16 at 03:02

Viewed 44 times

I'm writing a function like

function myFunction1 ( myFunction2ReturnBool ){
    if (myFunction2ReturnBool()) {
         // Do something if myFunction2ReturnedBool() returned true. 
    }
}

Here, myFunction2ReturnBool() is a function that checks if a condition is fulfilled. Is there a way to get this to work?

edited Aug 22 '16 at 03:02

nnnnnn

143,356
28
190
232

asked Aug 22 '16 at 02:21

kovac

4,353
8
41
74

2

what about that code doesn't work? It looks like it should work the way you have it written. – CodingWithSpike Aug 22 '16 at 02:22
Oh okay. I wasn't sure if I can just add the () in front of an argument. – kovac Aug 22 '16 at 02:25
1

Yes, in javascript functions are [first class citizens](https://stackoverflow.com/questions/5178068/what-is-a-first-class-citizen-function). – martriay Aug 22 '16 at 02:27
3

This is done all the time in JS, it's how callback functions work. – Barmar Aug 22 '16 at 02:33

Is it possible to pass an arbitrary function as parameter in Javascript where function is defined at runtime?

0 Answers0