Microsoft MakeCode provides Blocks / JavaScript / Python tools and editors
Create micro:bit Universal Hexes.
Manipulate files in a micro:bit MicroPython Intel Hex file.
micro:bit target for Microsoft MakeCode (PXT)
MakeCode (PXT) - command line interface
Lightweight debugging utility for Node.js and the browser
Lodash modular utilities.
React is a JavaScript library for building user interfaces.
A querystring parser that supports nesting and arrays, with a depth limit
Higher-order functions and common patterns for asynchronous code
Babel compiler core.