runjs

Install command: 
brew install --cask runjs

Name: RunJS

JavaScript playground that auto-evaluates as code is typed

https://runjs.app/

Development: Pull requests

Cask JSON API: /api/cask/runjs.json

Cask code: runjs.rb on GitHub

Current version: 4.0.5

Requirements: macOS >= 12

Analytics:

Installs (30 days)
runjs 26
Installs (90 days)
runjs 64
Installs (365 days)
runjs 366