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typelab / assertions / IsNonNullish

type IsNonNullish<T> = IfNonNullish<T, true, false>;

Checks if a given type T is a {} type.

Type Parameters

Type Parameter Description

T

The type to be checked.

Returns

true if T is a {} type, false otherwise.

Example

type Valid = IsNonNullish<{}>; // true
type Invalid = IsNonNullish<string>; // false