Node.js crypto.randomUUID( ) Function
The crypto.randomUUID() is an inbuilt application programming interface of class Crypto within crypto module which is used to generate a random RFC 4122 Version 4 UUID.
Syntax:
const crypto.randomUUID([options])
Parameters: This function takes the disableEntropyCache as a parameter
Return Value: This function returns a random RFC 4122 Version 4 UUID.
Example 1:
index.js
<script> // Node.js program to demonstrate the // crypto.randomUUID() api // Importing crypto module const crypto = require( 'crypto' ) // getting a random RFC 4122 Version 4 UUID // by using randomUUID() method const val = crypto.randomUUID({disableEntropyCache : true }); // display the result console.log( "RFC 4122 Version 4 UUID : " + val) </script> |
Run the index.js file using the following command.
node index.js
Output:
RFC 4122 Version 4 UUID : 88368f2a-d5db-47d8-a05f-534fab0a0045
Example 2:
index.js
<script> // Node.js program to demonstrate the // crypto.randomUUID() api // Importing crypto module const crypto = require( 'crypto' ) // getting a random RFC 4122 Version 4 UUID // by using randomUUID() method console.log(crypto.randomUUID()) </script> |
Run the index.js file using the following command.
node index.js
Output:
e2d3286f-2d8f-471a-bacb-1e5d28d8727e
Reference: https://nodejs.org/dist/latest-v15.x/docs/api/crypto.html#crypto_crypto_randomuuid_options
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