Skip to content

Instantly share code, notes, and snippets.

@PabloRegen

PabloRegen/Blocking-vs-non-blocking.js

Created April 9, 2019 23:28
Show Gist options
  • Star 0 You must be signed in to star a gist
  • Fork 0 You must be signed in to fork a gist
  • Save PabloRegen/4b26424c3b1996ac46828823b3ac027b to your computer and use it in GitHub Desktop.
Save PabloRegen/4b26424c3b1996ac46828823b3ac027b to your computer and use it in GitHub Desktop.
Download ZIP
Raw
Blocking-vs-non-blocking.js
// Blocking
const fs = require('fs');
const data = fs.readFileSync('/file.md'); // blocks here until file is read
console.log(data);
moreWork(); // will run after console.log
// Non-blocking
const fs = require('fs');
fs.readFile('/file.md', (err, data) => {
if (err) throw err;
console.log(data);
});
moreWork(); // will run before console.log
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment