How to create and use code snippets in VSCode?

The method of creating custom code snippets in VSCode is as follows: 1. Open the command panel (Ctrl Shift P or Cmd Shift P); 2. Enter "Preferences: Configure User Snippets" and select; 3. Select the target language or create a new global fragment file; 4. Add code templates in the format in the open JSON file, such as setting prefixes, contents, and descriptions; 5. After saving, enter the prefix and press Enter or Tab to expand it. For example, you can create pybase prefix fragments for the beginning of a Python script, which greatly improves the efficiency of repetitive code writing.

Using code snippets in VSCode can greatly improve coding efficiency, especially those code blocks that often require repeated input. As long as you set it up, you can automatically complete a large piece of commonly used code by typing a few letters.

How to create custom code snippets?

VSCode supports creating exclusive code snippets for different languages. The operation method is as follows:

• Open the command panel: Ctrl Shift P (Windows/Linux) or Cmd Shift P (Mac)
• Enter "Preferences: Configure User Snippets" and select Enter
• Select the language you want to configure, such as JavaScript, Python, etc., or select "New Global Snippets file" to create a global universal fragment

Then a .json file will be opened and your code template will be added in the format. For example:

 "Print to console": {
  "prefix": "log",
  "body": [
    "console.log('$1');",
    "$2"
  ],
  "description": "Log output to console"
}

After saving, enter log in the editor and you will see a prompt. Press Enter to expand the complete code.

How to use existing code snippets?

Using ready-made code snippets is very simple, the basic process is "Enter the prefix → Press Enter/Tab to expand". For example, if you set the log prefix, then enter log in the JS file and press Tab, console.log() structure will be automatically filled.

Some fragments may also contain multiple switchable positions (marked with $1 and $2 ), which you can jump and fill in in sequence via the Tab key.

If you are not sure what fragments are available, you can press Ctrl Space to trigger the automatic completion suggestions, which will list the currently supported fragments.

Recommend several practical scenarios

Some common usage scenarios include:

• Create component templates (such as React's function components)
• Quickly generate interface request structures (such as Axios calls)
• Insert a fixed format log output statement
• Insert annotated code block instructions

For example, if you often write Python scripts, you need to add a paragraph at the beginning:

 import os
import sys

def main():
    pass

if __name__ == "__main__":
    main()

Then you can make this into a snippet with the prefix set to pybase . In the future, you only need to enter this prefix every time to generate it quickly.

Basically that's it. Rational use of snippets can save a lot of repetitive labor. Although it is not complicated to set up, many people are prone to ignore its function.

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