CODEWITHSUNDEEP
node.jsfilesystems
ChewOnThis_Trident
ChewOnThis_Trident

Reputation: 2259

Insert at the beginning of a file with Node.js

Is there way to append to the beginning of a file in node (maybe to insert). I was looking around her http://nodejs.org/api/fs.html but didn't see anything, I know that append brings adds to the end of the file, but is there a way to add to the beginning of a file?

Thanks

Upvotes: 1

Views: 2229

Answers (2)

alfonsodev
alfonsodev

Reputation: 2754

You can do it the "unix" way with shelljs and pipes. 

const shell = require('shelljs')
shell
  .echo('This line will be on top\n')
  .cat('originalFile.txt')
  .to('originalFile.txt')

Upvotes: 1

Benjamin Gruenbaum
Benjamin Gruenbaum

Reputation: 276286

No, there is no built in way to insert at the beginning of the file in nodejs.

This is nothing specific to nodejs, it's the same way in C C# Java Python and pretty much any other languages I know and is just how the file system works. ( here is why not by the way)

You can however, read the file with fs.readFile and then write it back with the stuff you need added.

Upvotes: 2

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