简单的手风琴不起作用,因为处理程序一次触发 2 次
Simple accordion doesn't work because handler fires 2 times at once
我正在尝试创建一个非常简单的手风琴。
index.html
<div class="container">
<div class="accordian">
<div class="title">Title</div>
<div class="body">Lorem ipsum dolor, sit amet consectetur adipisicing elit. Corrupti mollitia maxime ab. Possimus est optio
</div>
<div class="accordian">
<div class="title">Title</div>
<div class="body">Lorem ipsum dolor, sit amet consectetur adipisicing elit. Corrupti mollitia maxime ab. Possimus est optio
</div>
</div>
main.js
let accordians = document.querySelectorAll(".accordian")
const toggle = e => {
if (e.target.nextElementSibling.classList.length < 2) {
e.target.nextElementSibling.classList.add("hidden")
console.log("1:",e.target.nextElementSibling.classList)
}
else {
e.target.nextElementSibling.classList.remove("hidden")
console.log("2:",e.target.nextElementSibling.classList)
}
}
accordians.forEach((obj) => {
obj.children[1].classList.add("hidden")
obj.addEventListener('click', e => { toggle(e) }, false)
})
第一个手风琴没有任何问题,但是当点击“切换”功能上的第二个时,会立即触发两次,没有任何区别。有什么线索吗?
首先,您不需要为 classList 编写切换函数,因为它已经存在。
其次,您的 <div class="body">
节点需要有结束 </div>
标签。
let accordians = document.querySelectorAll(".accordian")
accordians.forEach((obj) => {
obj.children[1].classList.add("hidden")
obj.addEventListener('click', e => {
e.currentTarget.children[1].classList.toggle("hidden")
}, false)
})
.hidden { display: none; }
<div class="container">
<div class="accordian">
<div class="title">Title</div>
<div class="body">Lorem ipsum dolor, sit amet consectetur adipisicing elit. Corrupti mollitia maxime ab. Possimus est optio </div>
</div>
<div class="accordian">
<div class="title">Title</div>
<div class="body">Lorem ipsum dolor, sit amet consectetur adipisicing elit. Corrupti mollitia maxime ab. Possimus est optio </div>
</div>
</div>
我正在尝试创建一个非常简单的手风琴。
index.html
<div class="container">
<div class="accordian">
<div class="title">Title</div>
<div class="body">Lorem ipsum dolor, sit amet consectetur adipisicing elit. Corrupti mollitia maxime ab. Possimus est optio
</div>
<div class="accordian">
<div class="title">Title</div>
<div class="body">Lorem ipsum dolor, sit amet consectetur adipisicing elit. Corrupti mollitia maxime ab. Possimus est optio
</div>
</div>
main.js
let accordians = document.querySelectorAll(".accordian")
const toggle = e => {
if (e.target.nextElementSibling.classList.length < 2) {
e.target.nextElementSibling.classList.add("hidden")
console.log("1:",e.target.nextElementSibling.classList)
}
else {
e.target.nextElementSibling.classList.remove("hidden")
console.log("2:",e.target.nextElementSibling.classList)
}
}
accordians.forEach((obj) => {
obj.children[1].classList.add("hidden")
obj.addEventListener('click', e => { toggle(e) }, false)
})
第一个手风琴没有任何问题,但是当点击“切换”功能上的第二个时,会立即触发两次,没有任何区别。有什么线索吗?
首先,您不需要为 classList 编写切换函数,因为它已经存在。
其次,您的 <div class="body">
节点需要有结束 </div>
标签。
let accordians = document.querySelectorAll(".accordian")
accordians.forEach((obj) => {
obj.children[1].classList.add("hidden")
obj.addEventListener('click', e => {
e.currentTarget.children[1].classList.toggle("hidden")
}, false)
})
.hidden { display: none; }
<div class="container">
<div class="accordian">
<div class="title">Title</div>
<div class="body">Lorem ipsum dolor, sit amet consectetur adipisicing elit. Corrupti mollitia maxime ab. Possimus est optio </div>
</div>
<div class="accordian">
<div class="title">Title</div>
<div class="body">Lorem ipsum dolor, sit amet consectetur adipisicing elit. Corrupti mollitia maxime ab. Possimus est optio </div>
</div>
</div>