javascript - 1分30秒倒计时器javascript

Question

我有代码，但它是 2 分钟计时器，我需要将其修改为 1 分 30 秒计时器。

我已经尝试过，但未能从 1:30 开始计时器。

因为我是这一行的初学者，并且想学习如何做到这一点。

这是代码

<div id=timer></div>
<script type="text/javascript">
  var timeoutHandle;

  function countdown(minutes, seconds) {
    var seconds = 60;
    var mins = minutes

    function tick() {
      var counter = document.getElementById("timer");
      var current_minutes = mins - 1
      seconds--;
      counter.innerHTML =
        current_minutes.toString() + ":" + (seconds < 10 ? "0" : "") + String(seconds);
      if (seconds > 0) {
        timeoutHandle = setTimeout(tick, 1000);
      } else {

        if (mins > 1) {

          // countdown(mins-1);   never reach “00″ issue solved:Contributed by Victor Streithorst
          setTimeout(function() {
            countdown(mins - 1);
          }, 1000);

        }
      }
    }
    tick();
  }

  countdown(2);
</script>

Answer 1

<div id=timer></div>
<script type="text/javascript">
    var timeoutHandle;
    function countdown(minutes, seconds) {
        function tick() {
            var counter = document.getElementById("timer");
            counter.innerHTML =
                minutes.toString() + ":" + (seconds < 10 ? "0" : "") + String(seconds);
            seconds--;
            if (seconds >= 0) {
                timeoutHandle = setTimeout(tick, 1000);
            } else {
                if (minutes >= 1) {
                    // countdown(mins-1);   never reach “00″ issue solved:Contributed by Victor Streithorst
                    setTimeout(function () {
                        countdown(minutes - 1, 59);
                    }, 1000);
                }
            }
        }
        tick();
    }

    countdown(1, 30);
</script>