Stoping a javascript function.

[new2AMD]

I have a start button calling a function. I want a stop button to stop that same function. Is there something like unload or onclick that will stop the function that is running?

 

[screw3d]

Showing us the code will help!

 

[hellman69]

Without seeing what you are trying to do, I'll throw a thought out there. Declare a global variable (blRun) set to true.

For the Stop button, have an onClick action that sets blRun = false;

For the Start function, simply add checks for blRun. If it's false, then return. If true, keep going.

Trevor

 

[MrChad]

Originally posted by: hellman69
Without seeing what you are trying to do, I'll throw a thought out there. Declare a global variable (blRun) set to true.

For the Stop button, have an onClick action that sets blRun = false;

For the Start function, simply add checks for blRun. If it's false, then return. If true, keep going.

Trevor

This will work, but make sure you use setTimeout() to loop your function, or you'll likely lock up the browser. Something like:

var bRun = false;

function myFunction(){
....if (bRun){
........// do some stuff
........setTimeout('myFunction()',1000);
....}
}

function startFunction(){
....bRun = true;
....setTimeout('myFunction()',1000);
}

function stopFunction(){
....bRun = false;
}