The program segment equivalent to toggleClass in jQuery and the direction of future learning_jquery

The following two paragraphs of jQuery are equivalent
1 Use toggleClass to implement the alternation of class values

Copy the code The code is as follows:

$("#in1").click(function(){
$("li").toggleClass("ok2");
})

2 Use js to judge the alternation of class values

Copy the code The code is as follows:

$ ("#in1").click(function(){
var ok=$("li:first").attr("class")
if (ok == "ok2"){
$("li").removeClass();
}else{
$("li").attr("class","ok2");
}
})

I started learning jQuery yesterday. js is a big problem in my front-end design technology, and I have never found a good way to learn it. Recently, I suddenly realized that I can learn jQuery. This thing is easier to learn. So the plan is to first acquire jQuery in a short period of time, and then advance to js. Through the understanding of js, I will participate in C#. In terms of tools, I will gradually move away from Adobe's Dreamweaver and turn to MS's Expression and Visual Studio. VS's support for jQuery is good. After learning C#, I plan to consider Blend. Since I have decided to join Microsoft, I must learn to use MS software to replace Adobe.

Learning content to be arranged
1 jQuery combined with JavaScript
2 Expression (Web, Design, Blend) combined with Visual Studio and C#
3 Review high school mathematics (sets, sequences, functions, trigonometry Functions, analytic geometry, binomial theorem, simple statistical derivatives)
4 Advanced Mathematics
5 Discrete Mathematics
6 Linear Algebra
7 Data Structures and Algorithms
8 Chinese Language and Literature