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single

function single<T>(predicate: BooleanConstructor): OperatorFunction<T, TruthyTypesOf<T>>;
function single<T>(predicate?: (
value: T,
index: number,
source: Observable<T>,
) => boolean): MonoTypeOperatorFunction<T>;
§
single<T>(predicate: BooleanConstructor): OperatorFunction<T, TruthyTypesOf<T>>
[src]

§Type Parameters

§Parameters

§
predicate: BooleanConstructor
[src]
§
single<T>(predicate?: (value: T, index: number, source: Observable<T>) => boolean): MonoTypeOperatorFunction<T>
[src]

§Type Parameters

§Parameters

§
predicate?: (value: T, index: number, source: Observable<T>) => boolean optional
[src]