Tag: operator

Jul 6, 2023 · new features

What is the satisfies operator in TypeScript?

TypeScript 4.9 introduces the "satisfies" operator, which allows us to verify that the type of an expression matches a specific type. This operator can be used to narrow down a union type and provide more precise type checking. In the example given, the "satisfies" operator is used to restrict the keys and values of a record type.

Jun 14, 2023 · new features

The void operator in TypeScript and JavaScript

The void operator in TypeScript and JavaScript evaluates an expression and returns `undefined`. It can be used to prevent unintended leakage of return values and handle Promises for side effects. It is useful when you want to suppress the return value of a function or initiate a Promise without handling its resolution.