Type Alias NoInfer<T>

NoInfer: Or<IsNull<T>, IsUndefined<T, Predicate>, { $else: T & {}; $then: T }>

Prevents inference of a type parameter T.

🦴 utilities

Type Parameters

Deprecated

💀 deprecated since 8.0.0: use NoInfer from TypeScript 5.4 instead

Author

original version author

Ajafff

See

https://github.com/microsoft/TypeScript/issues/14829#issuecomment-298425341

Example

function assertEqual<T>(a: T, b: NoInfer<T>) {
  return a === b
}

assertEqual(123, 324) // OK
assertEqual(123, 'abc') // Error
assertEqual({ x: 1 }, { x: 1, y: 2 }) // Error