Prevent JavaScript function from running twice (setTimeout)

Question

I have this function that runs for several seconds with the use of setTimeout. This function is ran when a button is clicked.

function complete(         


        

Answer 1

for stop running timer you have to clear him

        var stopTimer;

        function someFunction() {
            stopTimer= setTimeout(function(){
                console.log("something done");
            }, 3000);
        }

        function stopFunction() {
            clearTimeout(stopTimer);
        }