Javascript "Don´t change states to fast"

Question

大家好，我有一个代码，当您单击一个按钮（它开始播放视频并混合）时，它会从一种状态更改为另一种状态。现在我试着说我的事件处理程序，如果有人点击得非常快，他不应该将它用作输入。类似 = Eventhandler 的东西，请注意一秒钟内只需单击一次。希望我的代码在这里是可以理解的：

<script>
    var clickState = 0;
    var btn = document.querySelector('#playbutton');

    btn.addEventListener('click', function(){

    if (clickState == 0) {
    document.querySelector('#toggler').emit('fade_1');

    var videoEl_1 = document.querySelector('#video');

    videoEl_1.play();
    document.querySelector( "#skyid" ).emit('fade_1');
    clickState = 1;

    } else {

    document.querySelector('#toggler').emit('fade_2');

    var videoEl_1 = document.querySelector('#video');

    videoEl_1.pause();
    document.querySelector( "#skyid" ).emit('fade_2');
    clickState = 0;
      }
    });
</script>

Answer 1

您可以在单击按钮时将其禁用，然后设置超时以在一秒钟后重新启用它。

像这样

$( document ).ready(function() {
    $("#myButton").click(function(){
        // disable the button
        $("#myButton").prop("disabled", true);

        //do the things you want the button to do:
        console.log("doing stuff");

        // reenable the button after 1 second
        setTimeout(function(){
            $("#myButton").prop("disabled", false);
        }, 1000);
    });
});

此处示例：

https://jsfiddle.net/20n1gb89/8/

我在这里使用了一些 jQuery，但是 setTimeout 是原生的 JavaScript

编辑：

您似乎是在同一个按钮的点击处理程序中定义点击处理程序。看我的评论。删除 btn.addEventListener 并保留 if else 语句。看看是否可行。

 $(document).ready(function () {
        // here you define a click handler for playbutton
        $("#playbutton").click(function () {
            // disable the button
            $("#playbutton").prop("disabled", true);

            //do the things you want the button to do:
            var clickState = 0;
            var btn = document.querySelector('#playbutton');

            // here you define a click handler for the same button 
            // inside the first click handler. You shouldn't do that.
            btn.addEventListener('click', function () {
                if (clickState == 0) {
                    document.querySelector('#toggler').emit('fade_1');

                    var videoEl_1 = document.querySelector('#video');

                    videoEl_1.play();
                    document.querySelector("#skyid").emit('fade_1');
                    clickState = 1;
                } else {
                    document.querySelector('#toggler').emit('fade_2');

                    var videoEl_1 = document.querySelector('#video');

                    videoEl_1.pause();
                    document.querySelector("#skyid").emit('fade_2');
                    clickState = 0;
                }

                console.log("doing stuff");

                // reenable the button after 1 second
                setTimeout(function () {
                    $("#playbutton").prop("disabled", false);
                }, 2000);
            });

        });
    });

编辑 2：

也就是。试试这个：

$(document).ready(function () {
    $("#playbutton").click(function () {
        // disable the button
        $("#playbutton").prop("disabled", true);

        //do the things you want the button to do:

        var clickState = 0;

        // this doesn't really make sense. clickState will always be 0 
        // as it is defined as 0 each time you click the button. You 
        // will need to define clickState outside the click handler 
        // for this to work.
        if (clickState == 0) {
            document.querySelector('#toggler').emit('fade_1');

            var videoEl_1 = document.querySelector('#video');

            videoEl_1.play();
            document.querySelector("#skyid").emit('fade_1');
            clickState = 1;
        } else {
           document.querySelector('#toggler').emit('fade_2');

            var videoEl_1 = document.querySelector('#video');

            videoEl_1.pause();
            document.querySelector("#skyid").emit('fade_2');
            clickState = 0;
        }

        console.log("doing stuff");

        // reenable the button after 1 second
        setTimeout(function () {
            $("#playbutton").prop("disabled", false);
        }, 2000);
    });

});

});

Answer 2

您可以在点击时添加一个事件监听器并用它创建一个计时器

例如，这里在用户点击按钮后，我们启动一个1000ms的定时器，如果在这个时间间隔内点击按钮，我们将显示一个警报。

 var btn = document.querySelector('#playbutton');
 btn.addEventListener('click', function(){
       setTimeout(function(){
             if (btn.clicked == true){
                  alert("Cmon dude, chill a little");
             }
       }, 1000);
 });

Javascript "Don´t change states to fast"

Javascript "Don´t change states to fast"

javascript

button

event-handling

toggle

eventhandler