Can I reuse a function inside the same function?

Asked Nov 12 '15 at 03:37

Active Nov 12 '15 at 03:39

Viewed 58 times

Just a quick question: Can I call the same function within a function?

function rIN() {
    randomImgNumber = (Math.round(imgNumber * Math.random())) - 1;
    if (randomImgNumber === "undefined") {
        rIN();
    }
    return imgArray[randomImgNumber];
}

If not, is there another way I can redo the same function inside a function?

I'm sorry if this is a bad question, I am a beginner in coding.

edited Nov 12 '15 at 03:39

Anik Islam Abhi

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asked Nov 12 '15 at 03:37

Stardust

I believe you can :). That's called recursion :). Do some research on that – Tree Nguyen Nov 12 '15 at 03:38
1

have you tried and what is happening? – Arun P Johny Nov 12 '15 at 03:38
Sure. It's called recursion. Just make sure you are going to hit your condition at some point otherwise you'll get a stack overflow! – Kris Oye Nov 12 '15 at 03:39
2

You can indeed, and it is called recursion. However, this code is not correct for several other unrelated or semilrelated reasons. – Amadan Nov 12 '15 at 03:39
just `function rIN() { return imgArray[Math.floor(imgArray.length * Math.random())]; }` – Arun P Johny Nov 12 '15 at 03:40
You can read more aboute recursion in JavaScript [here](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Functions#Recursion) – roperzh Nov 12 '15 at 03:40
@Shadow - when do you expect `randomImgNumber === "undefined"` evaluate to `true`? – Igor Nov 12 '15 at 03:41
`randomImgNumber` will be a number, given `imgNumber` is a numerical value... so your condition `randomImgNumber === "undefined"` will never be true – Arun P Johny Nov 12 '15 at 03:42
Ah, okay. Thanks all for your replies; I got it to work. :) – Stardust Nov 12 '15 at 03:53

Can I reuse a function inside the same function?

0 Answers0