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A comment on Show HN: Codewich – A live-updating TypeScript/CSS/HTML playground. Parent comment

Re:Show HN: Codewich – A live-updating TypeScript/CSS/HTML p... by jstarks on Friday March 24, 2017 @06:20PM (#13952696)
What's an example of a TypeScript program where erasing the type information won't produce valid ES6? I had thought Flow and TypeScript were the same in this regard, but I am not an expert.
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Re:Show HN: Codewich – A live-updating TypeScript/CSS/HTML p... by evmar on Friday March 24, 2017 @06:33PM (#13952752)
TypeScript supports ES7 features, for example. It also has a few language-local quirks (like parameter properties, described https://www.typescriptlang.org/docs/handbook/classes.html ).

I find the grandparent argument pretty unconvincing though. People writing Flow are generally using JSX or ES modules (the Flow docs recommend the latter, for example), both of which require a transpiler like Babel to be used in a browser anyway.

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