Function singleOrDefault

Returns an entry from a singular sequence or a default value if empty. Throws if more than one entry.

Param: defaultValue

Returns

singleOrDefault<T>(): IterableTransform<T, undefined | T>
Returns an entry from a singular sequence or undefined if empty.
Type Parameters
- T
Returns IterableTransform<T, undefined | T>
- Defined in resolutions/singleOrDefault.ts:12
singleOrDefault<T, TDefault>(
defaultValue: TDefault,
): IterableTransform<T, T | TDefault>
Returns an entry from a singular sequence or the default value if empty. Throws if more than one entry.
Type Parameters
- T
- TDefault
Parameters
- defaultValue: TDefault
Returns IterableTransform<T, T | TDefault>
- Defined in resolutions/singleOrDefault.ts:20