Re:A 10x Faster TypeScript
by wrs on Tuesday March 11, 2025 @12:24PM
(#43334093)
Typescript is JavaScript at runtime. It’s not a separate language, just like Python with type annotations (TypePython?) is just Python at runtime. Both are just type annotations that get stripped away before anything tries to run the code. That’s the genius of the idea and why it’s so easily adopted.
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Re:A 10x Faster TypeScript
by Tadpole9181 on Tuesday March 11, 2025 @01:08PM
(#43334687)
It is quite literally a separate language. Python's type hints are a part of the Python specification and all valid Python type hints will run in any compliant Python runtime. Typescript is not, in any way, valid JavaScript. The moment you add any type syntax, you can no longer run the code in Node or Browsers without enabling a special preprocess step.
Do you think JSX is a separate language?
Re:A 10x Faster TypeScript
by Tadpole9181 on Tuesday March 11, 2025 @07:36PM
(#43338315)
Yes, JSX is a superset of JS and will not work in any tooling that is not explicitly JSX compatible. JS grammars will not parse it, it's not standard.