File exists in nodejs

There are two functions fs.exists() and fs.existsSync(). Function fs.exists() is deprecated, but fs.existsSync() is not. Everyone should use fs.stat() or fs.access() instead, these functions are part of Callback API and can be easily transform to the promise:

#!/usr/bin/env node --experimental-modules

import {access, constants} from 'fs';
import {homedir} from 'os';

let fileExists = s => new Promise(resolve => access(s, constants.F_OK, error => resolve(!error)));
const exists = await fileExists(`${homedir()}/Downloads/something.png`);