How to check if an element has specific css class using jQuery?Previous Post Next Post To determine if a given css class name has been used for an element, hasClass() method can be used. This is DIV1 with CLASS1 This is DIV2 with CLASS2 This is DIV3 with CLASS3Check for class...
jQuery源码解析之addClass(),removeClass(),toggleClass()和hasClass() 网站 (3)stripAndCollapse 作用:将vaues以空格分开,再以空格拼接 进击的小进进 2022/03/28 7430 typeof运算符及实现jquery中的addClass,removeClass,hasClass 数据结构编程算法javascript 版权声明:本文为博主原创文章,遵循 CC 4.0 by-sa 版...
之前维护的一段代码如下： var g=function(id){ return document.getElementById(id); }; var...
obj.className = removed;//替换原来的 class. } function hasClass(obj, cls){ var obj_class = obj.className;//获取 class 内容. var 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) {//...
jQuery 什么是 jQuery jQuery 是 js 的一个库,封装了我们开发过程中常用的一些功能,方便我们调用,提高开发效率。 js库是把我们常用的功能放到一个单独的文件中,我们用的时候,直接引用到页面里即可。 官网:http://jquery.com/ 官网API文档:http://api.jquery.com/ 汉化API文档:http://www.css88.com/jqapi...
<4>toggleClass 应用 Adds or removes the passed in class name to the Element, depending on whether or not it's already present. Examples: HTML JavaScript $('myElement').toggleClass('myClass'); Resulting HTML JavaScript $('myElement').toggle...
原生JS实现JQuery中的hasClass()、addClass()、removeClass()方法 function hasClass(ele, cls) { cls = cls || ''; if (cls.replace(/\s/g, '').length === 0) return false; // 当cls没有参数时,返回false return new RegExp(' ' + cls + ' ').test(' ' + ele.className + ' ');...
1 $( "#mydiv" ).hasClass( "foo" ) As would: 1 $( "#mydiv" ).hasClass( "bar" ) While this would return false: 1 $( "#mydiv" ).hasClass( "quux" ) As of jQuery 1.12/2.2, this method supports XML documents, including SVG.Example...
1 $( "#mydiv" ).hasClass( "foo" ) As would: 1 $( "#mydiv" ).hasClass( "bar" ) While this would return false: 1 $( "#mydiv" ).hasClass( "quux" ) As of jQuery 1.12/2.2, this method supports XML documents, including SVG.Example...
❮ jQuery HTML/CSS Methods Example Check if any element has a class named "intro": $("button").click(function(){ alert($("p").hasClass("intro")); }); Try it Yourself » Definition and Usage The hasClass() method checks if any of the selected elements have a specified class ...