Question

162

Destroy previous setInterval

rated 0 times [ 165] [ 3] / answers: 1 / hits: 49529 / 14 Years ago, wed, january 19, 2011, 12:00:00

I want a function to set an Ajax and a reload timer. The code below doesn't destroy the previous function call timer, so each time I invoke it I get another timer. How can I destroy the previous timer?

function initNowPlayingMeta(station) {

    $('#cancion').children().remove();

    $('#cancion').load('sonando.php?emisora=' + station);

    var prevNowPlaying = setInterval(function () {

        $('#cancion').load('sonando.php?emisora=' + station);

    }, 5000);

}

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yosefleod

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answered 14 Years ago kaileya · Accepted Answer

You need to store your timer reference somewhere outside of local scope (this essentially means declaring it with var outside of the function). Then, clear it with clearInterval:

var prevNowPlaying = null;



function initNowPlayingMeta(station) {

    if(prevNowPlaying) {

        clearInterval(prevNowPlaying);

    }

    $('#cancion').children().remove();

    $('#cancion').load('sonando.php?emisora=' + station);

    prevNowPlaying = setInterval(function () {

        $('#cancion').load('sonando.php?emisora=' + station);

    }, 5000);

}