No Stupid Questions (Developer Edition)

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submitted 1 year ago by [email protected] to c/no_stupid_questions

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Do I master Typescript if I master Javascript ? Is Typescript syntax different ? Answers appreciated, thank you !

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[–] [email protected] 6 points 1 year ago (4 children)

TypeScript is a superset of JavaScript. It means any valid JavaScript is also valid TypeScript.

You should start to learn basic JavaScript mechanisms : prototype inheritance, hoisting, scopes, this, event loop, type coercion.

Once « JavaScript » sounds familiar you will embrace TypeScript which is JavaScript with steroids!

[–] [email protected] -4 points 1 year ago (3 children)

TypeScript is a superset of JavaScript. It means any valid JavaScript is also valid TypeScript.

This is backwards. JS is superset and all TS compiles to valid JS.

The vast majority of JS does not translate to Typescript as the JS is untyped.

[–] Quasari 4 points 1 year ago (1 children)

To be a superset, all elements of the subset must be contained within the superset.

TypeScript is a superset of JavaScript as valid JS code(just with everything implicitly the any type) is valid TS code.

[–] [email protected] 0 points 1 year ago* (last edited 1 year ago)

Oh yeah if you add some sort of typing to the Javascript, sure.

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