typescript-node with babel preset
tsconfig.json- configuration for type-checking
the fields in this file are targeted for compatability
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index.js- a base helper module for Typescript & Babel web-based applications -
package.json- package configuration for npm registry. Includes project metadata.
Why was this made?
I'm glad you are interested!
TL;DR
Typescript does not ship with a runtime, or handle polyfills.
Babel has been used in many Javascript applications, and supports the NodeJS development community by transforming modern Javascript features for different runtimes and browsers. Although, it does not include Type-Checking.
This is where Typescript comes into play. Combined with Babel, Typescript applications can be created to support the diversity of web-based applications.
Large software applications can also benefit greatly from type checking, maintainability through enforced types, and additional intellisense through IDEs.