Javascript：倒计时完成时自动单击按钮

Question

I am trying to display the alert message when the countdown is complete, I am trying the following code but its does not work please help!我正在尝试在倒计时完成时显示警报消息，我正在尝试以下代码，但它不起作用请帮忙！

<!DOCTYPE html>
<html>
<body>

<p id=count></p>

<form>  
  <button id="autoClickBtn" onclick="autoClick()">Click me</button>
</form>

<script>

function autoClick(){alert("I am loaded and automatically clicked");}
        var count = 5;  
            var interval = setInterval(function () {
                document.getElementById('count').innerHTML = count;
                count--;
                if (count === -1) {

                    clearInterval(interval); 
                    window.onload = function () { document.getElementById("autoClickBtn").click() };

                }

            }, 1000 );

</script>


</body>
</html>

Answer 1

If you want to alert once after a certain time.如果您想在一定时间后提醒一次。 Use setTimeout function.使用setTimeout function。 You can add the delay in milliseconds.您可以以毫秒为单位添加延迟。 In the example below I have added a delay of 2 secs.在下面的示例中，我添加了 2 秒的延迟。

setInterval , on the other hand, will run indefinitely again and again after time period defined另一方面， setInterval将在定义的时间段后一次又一次地无限期运行

 setTimeout(function () { window.alert('This is an alert'); }, 2000);

Javascript：倒计时完成时自动单击按钮

问题描述

1 个解决方案

解决方案1
1 2020-05-13 12:31:41

Javascript：倒计时完成时自动单击按钮

问题描述

1 个解决方案

解决方案1 1 2020-05-13 12:31:41

解决方案1
1 2020-05-13 12:31:41