FilesExpand file tree

fixCodeStandard

/

GenerateGUID.js

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

18 lines (16 loc) · 707 Bytes

fixCodeStandard

/

GenerateGUID.js

Copy path

Top

File metadata and controls

• Code
• Blame

18 lines (16 loc) · 707 Bytes

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

/*

Generates a UUID/GUID in Node.Js.

The script uses `Math.random` in combination with the timestamp for better randomness.

The function generate an RFC4122 (https://www.ietf.org/rfc/rfc4122.txt) version 4 UUID/GUID

*/

export const Guid = () => {

const pattern = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'

let currentDateMilliseconds = new Date().getTime()

return pattern.replace(/[xy]/g, currentChar => {

const randomChar = (currentDateMilliseconds + Math.random() * 16) % 16 | 0

currentDateMilliseconds = Math.floor(currentDateMilliseconds / 16)

return (currentChar === 'x' ? randomChar : (randomChar & 0x7 | 0x8)).toString(16)

})

}

// > Guid()

// 'edc848db-3478-1760-8b55-7986003d895f'