![](/img/trans.png)
[英]click anywhere close menu; how do I make it stop opening when clicked anywhere
[英]How to stop .className when click anywhere on the screen
我有一个函数可以使元素列表中的元素在单击时更改其 .className,因此可以说,当我单击该元素时,该元素变为一种颜色,而其他元素变为另一种颜色。 该功能如下:
const memberB = document.querySelectorAll('#memberBoxAlex,
#memberBoxLiv, #memberBoxFlo');
for (let i = 0; i < memberB.length; i++)
memberB[i].onclick = function(){
memberBoxAlex.className = "faded";
memberBoxLiv.className = "faded";
memberBoxFlo.className = "faded";
if(memberB[i].className=="open"){
memberB[i].className="";
}
else{
memberB[i].className="open";
}
这完美地工作,但我接下来想要发生的是,当我在其框外单击以停止所有效果,以便让所有 memberB “正常”,让我们说,所以要有.className=""
。 我试图给他们的容器这个功能:
let exitEffect = document.getElementById(team)
exitEffect.onclick = function(){
memberBoxAlex.className = "";
memberBoxLiv.className = "";
memberBoxFlo.className = "";}
当我在成员框外单击时,如何执行此操作for memberB
的所有 className 将“停止”或变为.className=""
。
为此使用单个类以获得更通用的选择器,我使用此代码段为此使用单个事件侦听器。
window.addEvent = (event_type, target, callback) => {
document.addEventListener(event_type, function (event) {
// If the event doesn't have a target
// Or the target doesn't look like a DOM element (no matches method
// Bail from the listener
if (event.target && typeof (event.target.matches) === 'function') {
if (!event.target.matches(target)) {
// If the element triggering the event is contained in the selector
// Copy the event and trigger it on the right target (keep original in case)
if (event.target.closest(target)) {
const new_event = new CustomEvent(event.type, event);
new_event.data = { originalTarget: event.target };
event.target.closest(target).dispatchEvent(new_event);
}
} else {
callback(event);
}
}
});
};
接着
window.addEvent('click', '.openable-member', (event) => {
document.querySelectorAll('.openable-member').each((element) => {
if (element !== event.target) {
element.classList.add('faded');
element.classList.remove('open'); // guessing you'll need this too
}
});
event.target.classList.toggle('open');
});
Document 方法 querySelectorAll() 返回一个静态(非实时)NodeList,表示与指定选择器组匹配的文档元素列表。
所以你可以通过 memberB 映射,因为它不是一个数组。 你可以做的是:
const memberB = document.querySelectorAll('#memberA,#memberAA, #memberAAA '); memberB.onclick = function(){ memberB.className = "faded"; if(memberB.className == "open"){ memberB.className = ""; } else{ memberB.className = "open"; } }
你可以试试这个:
memberB[i].className = memberB[i].className.replace("open", "");
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.