Javascript setInterval function not defined

Question

Javascript setInterval function not defined

What is wrong with this code. It seems I am getting an error that the timer is not defined.

var counter = setInterval("timer()",1000);

            function timer(){
                count = count-1;
                if(count <=0){
                    clearInterval(counter);
                    return;
                }
                document.getElementById("timer").innerHTML = count + " sec";
            }

+5

javascript

Nistor alexandru Jul 11 '12 at 17:30

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1 answer

SLaks · Accepted Answer · 2012-07-11T17:32:47+0000

Do not pass the string to `setInterval`.

Your function is a local variable that does not exist if setTimeouteval is a string in the global scope.

Instead, pass this function to setInterval:

var counter = setInterval(timer, 1000);

Javascript setInterval function not defined

Do not pass the string to setInterval.

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Do not pass the string to `setInterval`.