css:
body
{
overflow: hidden;
}
div {
padding: 100px;
}
.one {
background: thistle;
}
.two {
background: mistyrose;
}
.three {
background: coral;
}
html:
<div class="one">
<div class="two">
<div class="three"></div>
</div>
</div>
js逻辑:
第一步:
let divs = document.querySelectorAll('div');
let one = document.querySelector('.one');
let two = document.querySelector('.two');
let three = document.querySelector('.three');
第一步;获取节点,要用得拿到是吧
divs.forEach(div => div.addEventListener('click', logText, {
once: true,
capture: false
}));
第二步;once: true,点击一个执行一个.
capture: false是只执行对应层.
function logText(e) {
console.log(this.classList.value);
e.stopPropagation();
}