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replace-in-file

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replace-in-file

A simple utility to quickly replace text in one or more files.

  • 8.2.0
  • latest
  • Source
  • npm
  • Socket score

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decreased by-1.74%
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What is replace-in-file?

The replace-in-file npm package allows you to easily search and replace text in files. It is useful for tasks such as updating configuration files, modifying source code, and performing batch text replacements.

What are replace-in-file's main functionalities?

Basic Replacement

This feature allows you to perform a basic search and replace operation in a specified file. The 'from' field can be a string or a regular expression, and the 'to' field is the replacement string.

const replace = require('replace-in-file');

const options = {
  files: 'path/to/file.txt',
  from: /oldText/g,
  to: 'newText',
};

replace(options)
  .then(results => console.log('Replacement results:', results))
  .catch(error => console.error('Error occurred:', error));

Multiple Replacements

This feature allows you to perform multiple search and replace operations in a single file. The 'from' and 'to' fields are arrays, where each element in 'from' is replaced by the corresponding element in 'to'.

const replace = require('replace-in-file');

const options = {
  files: 'path/to/file.txt',
  from: [/oldText1/g, /oldText2/g],
  to: ['newText1', 'newText2'],
};

replace(options)
  .then(results => console.log('Replacement results:', results))
  .catch(error => console.error('Error occurred:', error));

Glob Pattern Matching

This feature allows you to use glob patterns to specify multiple files for the search and replace operation. This is useful for batch processing multiple files in a directory.

const replace = require('replace-in-file');

const options = {
  files: 'path/to/*.txt',
  from: /oldText/g,
  to: 'newText',
};

replace(options)
  .then(results => console.log('Replacement results:', results))
  .catch(error => console.error('Error occurred:', error));

Dry Run

This feature allows you to perform a dry run of the search and replace operation. No actual changes are made to the files, but you can see what the results would be. This is useful for testing your replacement logic before applying it.

const replace = require('replace-in-file');

const options = {
  files: 'path/to/file.txt',
  from: /oldText/g,
  to: 'newText',
  dry: true,
};

replace(options)
  .then(results => console.log('Dry run results:', results))
  .catch(error => console.error('Error occurred:', error));

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Package last updated on 22 Sep 2024

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