Skip to content

Instantly share code, notes, and snippets.

@johnelliott
Last active June 4, 2024 18:02
Show Gist options
  • Save johnelliott/cf77003f72f889abbc3f32785fa3df8d to your computer and use it in GitHub Desktop.
Save johnelliott/cf77003f72f889abbc3f32785fa3df8d to your computer and use it in GitHub Desktop.
uuid v4 regex
import { v4 as uuid } from 'uuid';
export function generateId() {
return uuid();
}
const v4 = new RegExp(/^[0-9A-F]{8}-[0-9A-F]{4}-4[0-9A-F]{3}-[89AB][0-9A-F]{3}-[0-9A-F]{12}$/i);
console.log(generateId().match(v4));
//console.log(generateId().length)
//console.log('new way')
//console.log(generateId().length)
//console.log('new way, chopped')
//console.log(generateId().split('-')[0])
//console.log('old way')
//const generateNumber = () => Math.ceil(Math.random() * 100)
//console.log(`${generateNumber()}${generateNumber()}${generateNumber()}${generateNumber()}`)
// run with $ node_modules/.bin/babel-node testuuid.js
@timothystone-knsl
Copy link

@gastrodon the alias is common, since it is just the version and v4 is not a good naming. But I agree that generateId is not the best thing here since you can alias the v4 as generateId and will be the same outcome. To me looks like this was part of a bigger file and was just extracted the meaningful parts for the test.

I think the alias here is just to make it concrete to the user that the uuid API returns a version 4 UUID.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment