Reload page with Javascript when count down reaches 0 -

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i m using below function display count down , reload page when counter reaches 0. sat , watched counter hit 0 , nothing happened. isn't location.reload() suppose refresh page?

function secondpassed() {          var numdays = math.floor(seconds / 86400);         var numhours = math.floor((seconds % 86400) / 3600);         var numminutes = math.floor(((seconds % 86400) % 3600) / 60);         var numseconds = ((seconds % 86400) % 3600) % 60;          if (numseconds < 10) {                 numseconds = "0" + numseconds;          }          document.getelementbyid('count').innerhtml = "<span class='fa fa-clock-o' aria-hidden='true'></span> " +('' + numdays).slice(-2) + "d " + "" +('' + numhours).slice(-2) + "h " + "" + ('' + numminutes).slice(-2) + "m " + "" +('' + numseconds).slice(-2) + "s ";          if (seconds <= 0) {                 clearinterval(countdowntimer);                 location.reload();         } else {                 seconds--;         } }   setinterval(function () { secondpassed(); }, 1000);

i promoted comment answer describing issue.

your countdowntimer undefined when trying clearinterval , hence reload not called because execution aborted.

just remove offending clearinterval , work.

    if (seconds <= 0) {             // >> clearinterval(countdowntimer);             location.reload();     } else {             seconds--;     }

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