how to decode base64 image in nodejs code example

Example 1: nodejs read image as base64

const fs = require('fs');
const contents = fs.readFileSync('/path/to/file.jpg', {encoding: 'base64'});

Example 2: nodejs read image as base64

const fs = require('fs').promises;
const contents = await fs.readFile('/path/to/file.jpg', {encoding: 'base64'});