Disable New line at then end of file
Problem
Prettier 1.18.2 Playground link [code block] Input: [code block] Output: [code block] Expected behavior:
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1 Fix
Disable New Line at End of File in Prettier
Prettier automatically adds a new line at the end of files as part of its formatting rules. This behavior is defined in its configuration and is intended to comply with standards that recommend a newline at the end of files. However, in certain projects or environments, this may not be desired.
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- 1
Update Prettier Configuration
Modify the Prettier configuration file to disable the automatic addition of a new line at the end of files. This can be done by setting the `insertFinalNewline` option to `false` in the configuration.
javascriptmodule.exports = { insertFinalNewline: false }; - 2
Check for Prettier Config File
Ensure that you have a Prettier configuration file in your project root. This file can be named `.prettierrc`, `prettier.config.js`, or similar. If it does not exist, create one.
bashtouch .prettierrc - 3
Run Prettier with Updated Config
After updating the configuration, run Prettier on your files to apply the changes. This will ensure that the new settings take effect.
bashnpx prettier --write . - 4
Verify Changes in Files
Open the files that were formatted by Prettier and check the end of the files to confirm that there is no new line added at the end.
bashcat yourfile.js | tail -n 1
Validation
To confirm the fix worked, open any JavaScript file formatted by Prettier and check that there is no new line at the end of the file. You can use `cat yourfile.js | tail -n 1` to see the last line of the file directly.
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Environment
Submitted by
Alex Chen
2450 rep