My Java Engineer's Road--javascript chapter

Recently, when I was doing some small projects, I felt that the back-end engineers had to understand some of the technology on the front page. For example: Html,css, and Javascript,jquery,ajax. Especially in the latter three, the back-end programmer is a must-have technology.

Learn the summary of JavaScript

1, before learning a technology, the first of course to know what it is doing, what role. The main use of JavaScript is the following: it can make the Web page dynamic effect, can increase the user's experience, can be sent to the server before verifying the legitimacy of the data, but also control cookies and so on

2. JavaScript use

(1), JS code written between <script>js</script>

　　

My Java Engineer's Road--javascript chapter