Reference
globals · TypeScript 7.0
Every documented global. Each page lists signatures, a short example, and what changed by version. For the compiler, the checker, and the language service, start with the handbook.
Globals
- String
string · String
Immutable text as UTF-16 code units. Every method returns a new string; the wrapper object stays out of sight.
- Array
Array<T> · T[]
The ordered list. Half the methods return new arrays, the other half edit in place — knowing which is which is the whole game.
- Promise
Promise<T> · async / await
The placeholder for a value that isn't ready yet. Settles exactly once, composes with then — or, more often now, with await.