TypeScript Evolution

The TypeScript Evolution series consists of 45 posts:

1. Non-Nullable Types in TypeScript
2. Control Flow Based Type Analysis in TypeScript
3. Acquiring Type Declaration Files in TypeScript
4. Read-Only Properties in TypeScript
5. Tagged Union Types in TypeScript
6. More Literal Types in TypeScript
7. The never Type in TypeScript
8. Built-In Type Declarations in TypeScript
9. Compiling async/await to ES3/ES5 in TypeScript
10. External Helpers Library in TypeScript
11. Object Rest and Spread in TypeScript
12. keyof and Lookup Types in TypeScript
13. Mapped Types in TypeScript
14. Improved Inference for Literal Types in TypeScript
15. Literal Type Widening in TypeScript
16. Untyped Imports in TypeScript
17. The object Type in TypeScript
18. Dotted Properties and String Index Signatures in TypeScript
19. Null-Checking for Expression Operands in TypeScript
20. Mixin Classes in TypeScript
21. Generic Parameter Defaults in TypeScript
22. The --strict Compiler Option in TypeScript
23. Type-Checking JavaScript Files with --checkJs in TypeScript
24. Downlevel Iteration for ES3/ES5 in TypeScript
25. String Enums in TypeScript
26. Weak Type Detection in TypeScript
27. Spelling Correction in TypeScript
28. Dynamic import() Expressions in TypeScript
29. Optional catch Binding in TypeScript
30. JSX Fragment Syntax in TypeScript
31. Numeric Separators in TypeScript
32. Strict Property Initialization in TypeScript
33. Per-File JSX Factories in TypeScript
34. Conditional Types in TypeScript
35. Mapped Type Modifiers in TypeScript
36. Passing Generics to JSX Elements in TypeScript
37. Importing JSON Modules in TypeScript
38. The unknown Type in TypeScript
39. The --showConfig Compiler Option in TypeScript
40. Read-Only Array and Tuple Types in TypeScript
41. Const Assertions in Literal Expressions in TypeScript
42. The Omit Helper Type in TypeScript
43. Nullish Coalescing: The ?? Operator in TypeScript
44. Optional Chaining: The ?. Operator in TypeScript
45. Assertion Functions in TypeScript