Is there a way to specify the size/length of a file and have the system reserve the space needed? I'm looking for something like:

fs.write('file', Buffer, 1024*1024*54); // To create 54MB file.

Is there a way to specify the size/length of a file and have the system reserve the space needed? I'm looking for something like:

fs.write('file', Buffer, 1024*1024*54); // To create 54MB file.

• javascript
• node.js

• See this example for a decent implementation. – Patrick Roberts Commented Jun 20, 2015 at 9:46

1 Answer 1

Just create a Buffer of that size?

fs.writeFile('file', new Buffer(1024*1024*54));