Node.js / Delete content in file

Question

I want to delete the content of a simple text file with node.js. Or replace the file with a new/empty one.

How can I achieve this in node?

Answer 1

You are looking for fs.truncate or fs.writeFile

Either of the following will work:

const fs = require('fs') fs.truncate('/path/to/file', 0, function(){console.log('done')}) 

or

const fs = require('fs') fs.writeFile('/path/to/file', '', function(){console.log('done')}) 

There are also synchronous versions of both functions that you should not use.

Answer 2

fs.unlink is the call you need to delete a file. To replace it with different contents, just overwrite it with fs.writeFile.