setinterval - Simple? question about how to clearInterval() in Javascript - Stack Overflow

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My

 setInterval('name(var)',6000);

won't clear with:

clearInterval('name(var)');

or with:

clearInterval('name(var)');

why?

My

 setInterval('name(var)',6000);

won't clear with:

clearInterval('name(var)');

or with:

clearInterval('name(var)');

why?

• javascript
• setinterval

Share Improve this question Follow edited Jul 9, 2020 at 10:16 braX 11.8k55 gold badges2222 silver badges3737 bronze badges asked Feb 24, 2011 at 21:50 Toni Michel CaubetToni Michel Caubet 20.2k5858 gold badges217217 silver badges387387 bronze badges 2

• 1 Pass functions to setInterval, not strings to be evaled. Passing a string is ugly and inefficient at best and does horrible things to scope at worst. – Quentin Commented Feb 24, 2011 at 21:53
• i was getting name setInterval error (on firebu) if not..) can you please write the correct syntax for it? – Toni Michel Caubet Commented Feb 24, 2011 at 21:57

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4 Answers 4

Sorted by: Reset to default 5

setInterval returns a handle of the interval, so you do it like this:

var myInterval = setInterval(function(){ name(var) }, 6000);
clearInterval(myInterval);

Note: Notice how I used a anonymous function instead of a string too.

You need to store the returned intervalID and pass it to clearInterval later.

var intervalID = setInterval('name(var)',6000);
clearInterval(intervalID);

You need to pass in the interval id returned from setInterval ex:

var id = setInterval('name(var)', 2000);
clearInterval(id);

More information here. http://www.elated./articles/javascript-timers-with-settimeout-and-setinterval/

This will work:

var id = setInterval('name(var)',6000);
clearInterval(id);

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