Xiang Wang @ 2019-04-17 10:31:20
classList
read only, 返回一个DOMTokenList
案例
$("#title").classList.toggle("active");
className
DOMTokenList
properties
Methods
如果存在这个class, 就删除这个class, 返回false
如果不存在，就添加这个class, 返回true
* 语法
tokenList.toggle(token, force)
如果force存在，表明这个toggle是单向操作。true代表只能被添加，不能被移除，false代表只能被移除，不能被添加
* 案例
var span = document.querySelector("span"); var classes = span.classList; span.onclick = function() { var result = classes.toggle("c"); if(result) { span.textContent = "'c' added; classList is now '" + classes + "'."; } else { span.textContent = "'c' removed; classList is now '" + classes + "'."; } }