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This article introduces the relevant knowledge of "what is javascript?". Many people will encounter such a dilemma in the operation of actual cases, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

JavaScript is a lightweight programming language that can be used in HTML and web and is often used to add a variety of dynamic functions to web pages to provide users with a smoother and more beautiful browsing effect; JavaScript is also an important part of the skill group of Web developers.

This article operating environment: Windows7 system, javascript1.8.5 version, DELL G3 computer

Introduction to JavaScript

JavaScript is the most popular scripting language on the Internet, which can be used in HTML and web, and can be widely used in devices such as servers, PC, laptops, tablets and smartphones.

JavaScript is a scripting language

JavaScript is a lightweight programming language.

JavaScript is programming code that can be inserted into a HTML page.

After JavaScript is inserted into the HTML page, it can be executed by all modern browsers.

What does javascript do?

JavaScript is a scripting language belonging to the network, which has been widely used in Web application development. It is often used to add a variety of dynamic functions to web pages and provide users with a more smooth and beautiful browsing effect.

JavaScript is an important part of the skill group of Web developers.

To put it simply, Web developers need three main languages:

HTML: allows you to add content to a web page

CSS: used to specify the layout, style, and alignment of a web page.

JavaScript: improve the behavior of web pages.

JavaScript is easy to learn but difficult to master and can be used for a variety of purposes, from simply enhancing the functionality of the website to running cool games and Web-based software.

What can JavaScript do?

1. Make the web page interactive, such as responding to user clicks to provide users with a better experience

2. You can process the form, verify the user's input, and provide timely feedback to save the user time. For example, if you are asked to enter your email address in the form and you enter a mobile phone number, you should be given a reminder.

3. You can also create a page dynamically according to the user's operation. For example, when sending an email, add an attachment action.

4. Setting cookie,cookie is some temporary information stored in the browser, such as the address of the website you have visited and the user name you have used.

5. JavaScript simplifies HTML paragraphs that are repeated regularly and reduces download time.

6. The browser communicates with the server, such as the most popular Ajax asynchronous transmission.

7. Richer interface, you can use JavaScript to include items such as drag-and-drop components and sliders to provide a rich interface for your site visitors.

8. Server-side programming based on Node.js technology.

This is the end of what javascript does. Thank you for your reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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