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| 1 2 3 4 5 6 7 8 9 10 11 12 13 | 3x | /**
* Checks whether a value is not `undefined`; `null` passes, unlike with `isDefined`.
*
* @template T - The type of the value.
* @param value - The value to check.
* @returns `true` for anything but `undefined`.
* @example
* [1, null, undefined].filter(isNotUndefined); // [1, null], typed (number | null)[]
*/
export function isNotUndefined<T>(value: T): value is Exclude<T, undefined> {
return value !== undefined;
}
|