How to prevent a from jumping in jquery

How to implement jquery to prevent a from jumping: 1. Prevent the opening of a new page through the "event.preventDefault();" statement; 2. Disable the a tag through the live method; 3. Remove the href in the a tag attributes and onclick events.

The operating environment of this tutorial: windows10 system, jquery2.2.4, this article is applicable to all brands of computers.

Recommended: "jquery video tutorial"

jQuery controls the a tag to be non-clickable and non-jumping

jquery disables the a tag Method 1

$(document).ready(function () {
        $("a").each(function () {
            var textValue = $(this).html();
            if (textValue == "XX概况" || textValue == "服务导航") {
                $(this).css("cursor", "default");
                $(this).attr(&#39;href&#39;, &#39;#&#39;);     //修改<a>的 href属性值为 #  这样状态栏不会显示链接地址  
                $(this).click(function (event) {
                    event.preventDefault();   // 如果<a>定义了 target="_blank“ 需要这句来阻止打开新页面
                });
            }
        });
});

jquery disables a tag Method 2

$('a.tooltip').live('click', function(event) {
   alert("抱歉,已停用！");  
  event.preventDefault();   
});

jquery disables a tag Method 3

$(function(){
$('.disableCss').removeAttr('href');//去掉a标签中的href属性
$('.disableCss').removeAttr('onclick');//去掉a标签中的onclick事件
});

Disabling and enabling jquery control button

Control button Disabled:

$('#button').attr('disabled',"true");添加disabled属性 
$('#button').removeAttr("disabled"); 移除disabled属性

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