Convert CommonJS to ESM imports with find + replace

gistfile1.txt

In your preferred editor navigate to the search/find + replace section

- In find: `(?<='\.)(.*?)(?=')`
- In replace: `$1.js`

This will replace all imports beginning with `.`, ending with `'` to a `.js` file ending.

// It will not match these
import p from '@scoped/npm_package'
import p from 'npm_package'

// It will match these
import p from './local_file_import'
import p from '../../../local_file_import'
import p from '../../../local_file_import.js'

Note the last one: RegEx could be improved, but it would indicate conversion to ESM has already attempted. 

This is designed for fresh migrations, and on repositories already using import/export pattern throughout code base.

*Be sure to exclude any file types you do not want to match (e.g. `*.json*, node_modules`)*

**You can test the RegEx here https://regex101.com/r/9cy4Sj/1**