toggleClass(class):如果存在(不存在)就删除(添加)一个类 function hasClass(obj, cls) {returnobj.className.match(newRegExp('(\\s|^)'+ cls +'(\\s|$)')); } function addClass(obj, cls) {if(!this.hasClass(obj, cls)) obj.className +=""+cls; } function removeClass(obj, cls) {if...
原生js实现addClass,removeClass,hasClass方法 functionaddClass(obj, cls){varobj_class = obj.className,//获取 class 内容.blank = (obj_class != '') ? ' ' : '';//判断获取到的 class 是否为空, 如果不为空在前面加个'空格'.varadded = obj_class + blank + cls;//组合原来的 class 和需要...
if (!("classList" in document.createElement("_"))) { (function (view) { "use strict"; if (!('Element' in view)) return; var classListProp = "classList" , protoProp = "prototype" , elemCtrProto = view.Element[protoProp] , objCtr = Object , strTrim = String[protoProp].trim ...
obj.className = removed;//替换原来的 class. } function hasClass(obj, cls){ var obj_class = obj.className,//获取 class 内容. obj_class_lst = obj_class.split(/\s+/);//通过split空字符将cls转换成数组. x = 0; for(x in obj_class_lst) { if(obj_class_lst[x] == cls) {//循环...
Add Class by Class W3.JS Add Classes to HTML ❮ PreviousNext ❯ Add a class: w3.addClass(selector,'class') Add multiple classes: w3.addClass(selector,'class1class2class3...') Add Class by Id Add the "marked" class to an element with id="London":...
2.用js模拟实现 那要从 className 属性入手来操作class类,无非就是字符串的拼接截取操作了,这里就直接附上代码: AI检测代码解析 //自定义添加class方法 function addClass(ele, name) { if (name) { //判断该dom有没有class,有则在原class基础上增加,无则直接赋值 ...
... Add visual styles Add light and dark themes Enable switching the theme Dark ... Notice that the element in this example has a class attribute that you can use to apply CSS styles. Save the changes to your HTML file with the keyboard shortcut Control+S on Windows or Comma...
item { display: none; } 商品介绍 规格与包装 售后保障 商品评价(50000) 手机社区 商品介绍模块内容 规格与包装模块内容 售后保障模块内容 商品评价(50000)模块内容
问使用jQuery addClass实现粘滞导航EN我正在尝试使用jQuery来获得一个水平导航栏，当您向下滚动经过某个点...
... Add visual styles Add light and dark themes Enable switching the theme Dark ... Notice that the element in this example has a class attribute that you can use to apply CSS styles. Save the changes to your HTML file with the keyboard shortcut Control+S on Windows or Comma...