TypeScript 2.2 TypeScript 2.2 Support for Mix-in classes object type Support for new.target Better checking for null/undefined in operands of expressions Dotted property f...

TypeScript 2.3 TypeScript 2.3 Generators and Iteration for ES5/ES3 Async Iteration Generic parameter defaults New –strict master option Enhanced –init output Errors in .j...

TypeScript 2.4 TypeScript 2.4 Dynamic Import Expressions String Enums Improved inference for generics Strict contravariance for callback parameters Weak Type Detection

TypeScript 3.2 TypeScript 3.2 strictBindCallApply Generic spread expressions in object literals Generic object rest variables and parameters BigInt Non-unit types as union...

TypeScript 1.6 JSX support New .tsx file extension and as operator Using React Using other JSX framworks Output generation Intersection types Example Local type declaration...

TypeScript 2.3 Generators and Iteration for ES5/ES3 Iterators Generators New —downlevelIteration Async Iteration Async iterators Async Generators The for-await-of Statement ...

TypeScript 2.4 Dynamic Import Expressions String Enums Improved inference for generics Return types as inference targets Type parameter inference from contextual types Stricter...

TypeScript 2.6 Strict function types Example Note Cache tagged template objects in modules Example Localized diagnostics on the command line Example Suppress errors in .ts ...

TypeScript 2.9 Support number and symbol named properties with keyof and mapped types Example Example Recommendations Generic type arguments in JSX elements Example Generic ...

TypeScript 3.1 Mapped types on tuples and arrays Properties declarations on functions Version selection with typesVersions Matching behavior Multiple fields TypeScript 3.1...