Assertions to test your TypeScript types.

Type assertions aka less-broken `typeof`

Type assertions aka less-broken typeof.

A tiny runtime library for type assertions

Disallow type assertions in TypeScript code

Cross-browser type assertions (less broken typeof)

A biome plugin that disallows type assertions in TypeScript code.

ESLint plugin with ^? Twoslash, $ExpectError, and $ExpectType type assertions. 🧩

runtime type assertions for catching errors early

Disallow type assertions in TypeScript code

Forced runtime type assertions for untrusted input — get the type you expect or throw, instead of silently coercing a wrong value to "" / 0 / false.

Useful type assertions for TS that happen both in typechecking and in runtime

Chai plugin for type assertions with TypeScript support / Chai 類型斷言外掛程式，支援 TypeScript

Simple, readable, structural type assertions for Chai.

ESLint plugin to enforce parentheses around TypeScript type assertions in Vue templates

Cross-browser type assertions (less broken typeof)

Type check values

Allow parsing of the module assertion attributes in the import statement

basic type assertions

Runtime type assertions for function arguments in Node.js