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js按钮双击怎么不让它执行两次单击事件

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js按钮双击怎么不让它执行两次单击事件


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by (71.8m points)

别截图,直接贴代码。

思路:延时300ms执行click处理函数,如果是双击则取消执行click处理函数。

var s;
var delayClickTimerId;
var b = document.getElementById('bb');
b.onclick = () => {
    if(delayClickTimerId) {
        return;
    }
    delayClickTimerId = setTimeout(() => {
        delayClickTimerId = null;
        clearInterval(s);
        s = setInterval(() => {
            window.scrollBy(0, 20)
        }, 20)
        console.log('6666');
    }, 300);
    
}

b.ondbclick = () => {
    // 如果是double click,则取消click处理
    if(delayClickTimerId) {
        clearTimeout(delayClickTimerId);
        delayClickTimerId = null;
    }
    clearInterval(s);
}

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