JavaScript: how to test if clearInterval function is true or false

Question

I've a little question i'd like to test if my clearInterval(playfunction) is true of false and I tought it would work like this

if(clearInterval(play)==true){

    //do this 1

    }
    else{

    //do this 2

    }

But it dosnt work like this...what did I do wrong?

Kind Regards, and thanks for help!

Why would it ever be `false` and what do you want to do with this information? — deceze, Jul 06 '11 at 06:59
http://stackoverflow.com/questions/1469339/checking-whether-clearinterval-has-been-called — Sladex, Jun 28 '13 at 05:54

score 5 · Accepted Answer · answered Jul 06 '11 at 07:00

5

clearInterval doesn't return anything. It will always be undefined and never true or false.

answered Jul 06 '11 at 07:00

Quentin

I've a hover function and I just wanna test if the play stop if i hover a div – Raphael Jul 06 '11 at 07:25

score 1 · Answer 2 · answered Jul 06 '11 at 06:58

1

What are you trying to test with the result of clearInterval? That function has no return-type.

answered Jul 06 '11 at 06:58

2 Answers2