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Discussion on: TSConf 2019: Types on every desk, in every home, for every JS developer

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If you know javascript ES6, you already know most of it. And if you know nodejs, you should be able to set up a compile step. Then just go through Microsofts own basic types documentation to figure out how to do types. Best part is that you don't need to know all of it.. You can slowly turn your javascript into typescript as you learn more.

I'd recommend you use VSCode as editor because of its very good integration with typescript. I've not tested it in editors like sublime or atom but I've tried VS2019, it is sub-optimal.

I would also recommend this git-book. Wow, they've added a lot of stuff since last time I've read it. But take the opinions in the book with a grain of salt.