Home/ Questions/Q 8176113
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-06T23:02:30+00:00

I am having trouble getting a javascript function to reset itself after an onclick

  • 0

I am having trouble getting a javascript function to reset itself after an onclick event. When I click the “Start” button the counter begins to count up. But when I click the “Reset” button nothing happens. I need the timer to reset to “0:00” and wait for me to click “Start” again. Here is my code:

<script type="text/javascript">
var seconds = 0;
var minutes = 0;

function zeroPad(time) {
    var numZeropad = time + '';
    while(numZeropad.length < 2) {
        numZeropad = "0" + numZeropad;
    }
    return numZeropad;
}

function countSecs() {
    seconds++;

    if (seconds > 59) {
         minutes++;
         seconds = 0;
    }
    document.getElementById("timeBox").innerHTML = "Time " + zeroPad(minutes) + ":" + zeroPad(seconds);
}

 function startTimer() {
     action = window.setInterval(countSecs,1000);
 }


function resetTimer() {
    var seconds = 0;
    var minutes = 0;
 }

</script>

<body>
<button onclick = "startTimer()">Start</button>
<div id="timeBox">Time 00:00</div>

<button onclick = "resetTimer">Reset</button>
</body>
Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Onclick events must call functions like: onclick="resetTimer();" with the parenthesis at the end. Some browsers may try to submit on button clicks if you don’t define type="button". I didn’t assume you wanted reset timer to stop the timer so I added a stop button.

    http://jsfiddle.net/iambriansreed/WRdSK/

    <button type="button" onclick="startTimer();">Start</button>
<div id="timeBox">Time 00:00</div>

<button type="button" onclick="resetTimer();">Reset</button>
<button type="button" onclick="stopTimer();">Stop</button>

<script>

    window.seconds = 0;
    window.minutes = 0;

    function startTimer() {
        window.action = setInterval(countSecs,1000);
    }
    function resetTimer() {
        seconds = 0;
        minutes = 0;
    }
    function stopTimer() {
        clearInterval(action);        
        seconds = -1;
        minutes = 0;
        countSecs();
    }
    function zeroPad(time) {
        var numZeropad = time + '';
        while(numZeropad.length < 2) {
            numZeropad = "0" + numZeropad;
        }
        return numZeropad;
    }

    function countSecs() {
        seconds++;

        if (seconds > 59) {
             minutes++;
             seconds = 0;
        }
        document.getElementById("timeBox").innerHTML = "Time " + zeroPad(minutes) + ":" + zeroPad(seconds);
    }

</script>

    ​

    • 0