How to edit javascript on computer

In today's computer age, programming languages ​​have become more and more popular. As a programming language widely used in network development, Javascript is also essential. Many people choose to write Javascript code on their computers. But how do you edit Javascript code correctly on your computer? In this article, I will introduce the basic knowledge and application tools for editing Javascript on a computer to help readers better understand and master the compilation and application of Javascript.

1. Learn Javascript

Before editing Javascript, you first need to learn the basic knowledge of Javascript and understand basic concepts such as Javascript syntax, data types, variables, functions and objects. To better understand and write Javascript code. You can learn Javascript knowledge through online tutorials, websites or books. These are all more effective ways of learning. At the same time, you can also further improve your understanding and application of Javascript through practice.

2. Choose a suitable editor

After understanding Javascript programming, you need to choose a suitable editor. An editor is a software tool used for writing code, and different editors have different features and functions. Broadly speaking, editors are divided into text editors and code editors. The former is a pure text editor, and the latter provides special functions for writing programs.

The following are some commonly used editors:

Sublime Text: is a popular but not open source editor. It supports almost any language and has a large number of plugins available.

Visual Studio Code: is a cross-platform free editor developed by Microsoft. Simplified code writing and organization. At the same time, VS Code can also be integrated with other development tools.

Notepad: is an easy-to-use open source text editor that is popular on Windows. Its syntax highlighting and code folding capabilities are popular features.

Atom: is another popular editor developed by GitHub. It can be easily integrated with GIT and also supports Markdown language writing.

Choosing an editor that suits you can help improve programming efficiency.

3. Separate JavaScript and HTML

Some people achieve functionality by embedding Javascript code in HTML. However, this is a bad habit. The reasons are as follows:

First of all, the code is mixed together, making the code confusing and difficult to maintain and upgrade later.

Secondly, the browser will be slow to download Javascript code, which will affect the page loading speed.

Therefore, when editing Javascript code, it should be separated from the HTML page and saved into a Javascript file for separate processing and maintenance.

4. Follow coding style specifications

Coding style specifications refer to following unified rules when writing code to make the code easier to read and more compliant with standards. Most programming languages ​​have their own coding style, and Javascript is no exception.

The following are some examples of coding conventions:

Use spaces for indentation

Use semicolons (;)

Use single quotes whenever possible

Use camel case

Following coding style specifications can help code readability and reduce the probability of code errors.

5. Debugging Code

When writing Javascript, errors are likely to occur. At this time, debugging is required to find the problem. You can use the debugging tools that come with the browser to check each step of the code execution and find errors in the code (I recommend Chrome's devtools), or you can make corrections based on specific error prompts.

All in all, editing Javascript on a computer is a fun and challenging task. Learning coding knowledge and using an editor that suits you can improve programming efficiency. Processes such as separating Javascript and HTML, following coding standards, and debugging code can improve the efficiency and accuracy of code. As time goes by and experience accumulates and improves, it will become easier to successfully write better Javascript code.

The above is the detailed content of How to edit javascript on computer. For more information, please follow other related articles on the PHP Chinese website!