Restart my life with TypeScript Yu Kamiya 

About me CyberAgent, Inc. AWA Co. Ltd. I was a server side engineer until 3 years ago I am a front end engineer in a few years Kind of full-stack engineer lol On maternity leave 

Development with my child 

I am on maternity leave... 

I don’t have any technical topics :( 

However 

I have a plan after returning to work 

Development with TypeScript 

TypeScript (needless to say :P) Open-source programming language by Microsoft Static typing for JavaScript Output after compiling is JavaScript Develop TS with type declaration file(d.ts) installed via `npm i @type/hoge` Many popular libraries support d.ts Official language at Google 

Motivation I was a Java programmer Am used to a static typing language I developed with JavaScript for 2 years No type Found bugs when app starts running I want to remove bugs before running app by passing a different type Passing a different type to some function 

Practice with TS ●  Client side ○  React ○  Redux ○  Material-ui ●  Server side ○  Node.js ○  Express 

I am a very beginning of TypeScript 

I wanna make my development easier and more efficient 

Thank you!!