学习乐园 · TypeScript——JavaScript的超集

TypeScript

noImplicitAny

Trigger an error if TypeScript uses 'any' whenever it can't infer a type.

strictNullChecks

Makes types non-nullable by default, catching a broad class of errors.

strictFunctionTypes

Disable bivariant parameter checking for function types.

strictPropertyInitialization

Ensure non-undefined class properties are initialized in the constructor.

noImplicitThis

Flag locations where the type of a 'this' expression implicitly has the type 'any'.

noImplicitReturns

Error on functions which do not return from every branch.

JavaScript