Centers for Disease Control Front End Website Template

If a website template can be interactive and contain more active elements, it is necessary to embed other technologies in the web page. Such as: Javascript, VBScript, Document Object Model (DOM, Document Object Model), Layers and Cascading Style Sheets (CSS, Cascading Style Sheets). Here we mainly talk about Javascript. So what is Javascript? Javascript is a new programming language born to meet the needs of dynamic web page production. It is now more and more widely used in Internet web page production. Javascript is a scripting language developed by Netscape, or a description language. Based on HTML, interactive Web pages can be developed using Javascript. The emergence of Javascript enables a real-time, dynamic, and interactive relationship between web pages and users, making web pages contain more active elements and more exciting content. Running programs written in Javascript requires a browser that supports the Javascript language. Netscape Navigator 3.0 and above browsers can support Javascript programs, and Microsoft Internet Explorer 3.0 and above browsers basically support Javascript. Microsoft also has its own developed Javascript, called JScript. Javascript and Jscript are basically the same, except for some differences in details. Javascript is short and concise, and is executed on the client machine, which greatly improves the browsing speed and interactive capabilities of web pages. At the same time, it is a simple programming language specifically tailored for making Web pages.
JavaScript makes web pages more interactive. JavaScript simplifies regularly repeated HTML segments, reducing download times. JavaScript can respond to user operations in a timely manner and perform instant checks on submitted forms without wasting time on CGI verification. The features of JavaScript are endless, as long as you get creative.