How to configure JavaScript in vscode

As JavaScript becomes more and more popular, more developers are starting to use Visual Studio Code (VSCode for short) to write their own JavaScript code. VSCode is a lightweight code editor developed by Microsoft that supports many programming languages ​​and frameworks, including JavaScript. If you are also using VSCode to write JavaScript, then this article will teach you how to configure VSCode to improve development efficiency.

1. Installing VSCode

First, you need to download and install VSCode from the official website: https://code.visualstudio.com/. Once the installation is complete, launch VSCode and open the JavaScript project folder.

2. Adjust editor settings

In the top menu of VSCode, select File >Preferences>Settings. This will open a JSON file where you can modify the editor's settings.

The following are several common settings that you can adjust according to your own needs:

"editor.tabSize": Set the number of spaces for tab indentation.

"editor.autoIndent": Whether the editor should automatically indent when you press the Enter key.

"editor.formatOnSave": Whether to automatically format the code when you save the file.

3. Install necessary extensions

In VSCode, an extension is an installable plug-in that can be used to extend the functionality of the editor. Here are a few essential extensions that will help you become more efficient in JavaScript development.

ESLint

ESLint is a code inspection tool that can help you find potential code problems and provide optimization suggestions. To install ESLint, press "Ctrl Shift X" (Windows/Linux) or "Cmd Shift X" (Mac) in VSCode to open the extensions panel, then search for "ESLint" and click "Install."

Prettier

Prettier is a code formatting tool that keeps your code in a consistent format across different team members. To install Prettier, press "Ctrl Shift X" (Windows/Linux) or "Cmd Shift X" (Mac) in VSCode to open the extensions panel, then search for "Prettier" and click "Install."

Debugger for Chrome

Debugging is one of the most important skills for programmers in the development process. Debugger for Chrome integrates your VSCode editor with the Chrome browser so you can easily debug while running your code. To install Debugger for Chrome, press "Ctrl Shift X" (Windows/Linux) or "Cmd Shift X" (Mac) in VSCode to open the extensions panel, then search for "Debugger for Chrome" and click "Install."

4. Create debug configuration

Now, you need to create a debug configuration to use the debugger when using VSCode for JavaScript development. To create a debug configuration, use the Debugger tab in VSCode and select Create Launch Configuration. If you are using Node.js, you should select the "Node.js" configuration.

The following is a sample JavaScript debugging configuration:

{

"version": "0.2.0",
"configurations": [
    {
        "name": "Chrome",
        "type": "chrome",
        "request": "launch",
        "url": "http://localhost:8080",
        "webRoot": "${workspaceFolder}"
    },
    {
        "name": "Node.js",
        "type": "node",
        "request": "launch",
        "program": "${workspaceFolder}/index.js"
    }
]

}

Please note that the actual configuration may vary from project to project. Debug configuration usually needs to be configured with a specific JavaScript framework or library.

5. Debugging using the debugger

After you create a debug configuration, you can use the debugger to debug your JavaScript code. To start debugging, press the "F5" key, which will start the debugger you just specified (for example, Chrome or Node.js). Once the debugger is launched, you can use it to debug breakpoints in your code, view variable values, and debug other specific issues in JavaScript.

Summary

Through this article, you should already know how to configure the JavaScript development environment in VSCode. These methods include:

• Adjust editor settings to enhance the editing experience;
• Install necessary extensions to improve development efficiency;
• Create debugging configurations to debug JavaScript code ;

After you master these basic functions, you will be able to develop JavaScript more efficiently.

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