Migrating from JavaScript to TypeScript

Migrating from JavaScript to TypeScript

TypeScript. JavaScript that scales.

Seungjae Lee @huiseoul

Huiseoul?

Frontend React Native, Mobx ...

Backend Node.js, GraphQL ...

Written by TyoeScript and one @types/huiseoul

History

2012 10 MicroSoft

2014 4 Build v1.0 VS2013 builtin

2014 7 5 , Github

2016 9 v2.0 @types/* strictNullChecks

v2.3.2

Specs

Opensource: Superset of JavaSript

JavaScript

Static Typing Checked at compile time Type annotation

OOP EcmaScript features

supports v3 ~ future proposals ... and much more

Benefit

: OK : >

Learning curve

JavaScript JavaScript !

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