How to use javascript in vscode

VS Code is a very popular integrated development environment that is widely used in web development. JavaScript is one of the most commonly used programming languages ​​in web development.

In this article, we will introduce how to use VS Code to write JavaScript code, including installing the necessary plug-ins, debugging the code, and using some VS Code features to improve development efficiency.

Install plug-in

Writing JavaScript code in VS Code allows us to get a richer coding experience. Therefore, we need to install some necessary plug-ins first.

First, we need to install the JavaScript language support plug-in. This plug-in provides functions such as code formatting, syntax highlighting, auto-completion, and error checking for JavaScript.

We can install the plug-in through the following steps:

1. Open VS Code.
2. Click the "Extend" button on the left.
3. Enter "JavaScript" in the search box, select "Alorence.languages", and then click the "Install" button.
4. After the plug-in installation is complete, click the "Reload" button.

In addition, we can also install some other plug-ins to assist development. The following are several recommended plug-ins:

• ES6 Mocha Snippets: Provides some common ES6 syntax code examples and supports auto-completion.
• ESLint: A widely used JavaScript code checking tool that can check and fix common errors in the code.
• Debugger for Chrome: Debugging in VS Code makes the debugging process easier and more efficient.
• Prettier: Provides code formatting function, which can help us automatically format the code and ensure consistent code style.

Debug Code

Debugging JavaScript code in VS Code is very easy.

To debug JavaScript code, you need to use the "Debugger for Chrome" plug-in. This plugin helps us connect to the Chrome browser and debug it.

Here are some steps for debugging JavaScript code:

1. Open our webpage in Chrome browser.
2. Open the JavaScript file corresponding to the web page in VS Code.
3. Click the "Debug" button and select "Launch Chrome" to debug.
4. Open the developer tools in the Chrome browser.
5. In the "Debug" panel in VS Code, click the "Pause" button to stop the execution of the JavaScript code.
6. Check the status of the code and debug it. We can use some VS Code debugging tools, such as breakpoints, debugging controls, variable viewing, etc.

Use VS Code features to improve development efficiency

In addition to plug-ins and debugging tools, VS Code also provides many features to improve development efficiency. Here are some tips for a more productive development experience.

1. Using Code Snippets

VS Code allows us to use code snippets to quickly generate repetitive code. A code snippet is a defined, pre-written, commonly used piece of code that is used in many places. Using code snippets in VS Code is as easy as typing the name of the snippet and pressing the Tab key.

2. Using the File Change Monitor

VS Code provides a file change monitor that notifies us when a file is modified. This feature can greatly improve our development efficiency, especially when developing large projects.

3. Use shortcut keys

Using shortcut keys allows us to perform operations faster. In VS Code, we can use shortcut keys to complete many operations, such as formatting code, jumping to definitions, commenting code blocks, etc.

Conclusion

Writing, debugging JavaScript code and using some other features in VS Code can help us complete our work faster and more accurately. By installing necessary plug-ins, debugging tools and mastering some skills in VS Code, we can enhance our development capabilities and continuously improve our efficiency and quality in web development.

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