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Programming language created by Microsoft. Open source, and compiles to JavaScript.

3 votes
Accepted

Why don't variables in TypeScript implicitly infer literal typing?

From @amon's comment: this behaviour indicates that the type checker does not inherit this info from the interface, but first type-checks the class (incl. type inference for foo) and then checks w …
Jacob Stamm's user avatar
2 votes
2 answers
342 views

Why don't variables in TypeScript implicitly infer literal typing?

Given a literal type, for instance 1 | 2, assigning a value to a variable that correctly corresponds to the literal type will fail. interface SomeInterface { foo: (1 | 2); } class SomeClass imple …
Jacob Stamm's user avatar