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switchMap

deprecated
@deprecated

The resultSelector parameter will be removed in v8. Use an inner map instead. Details: https://rxjs.dev/deprecations/resultSelector

function switchMap<T, O extends ObservableInput<any>>(project: (value: T, index: number) => O): OperatorFunction<T, ObservedValueOf<O>>;
function switchMap<T, O extends ObservableInput<any>>(project: (value: T, index: number) => O, resultSelector: undefined): OperatorFunction<T, ObservedValueOf<O>>;
function switchMap<T, R, O extends ObservableInput<any>>(project: (value: T, index: number) => O, resultSelector: (
outerValue: T,
innerValue: ObservedValueOf<O>,
outerIndex: number,
innerIndex: number,
) => R): OperatorFunction<T, R>;
§
switchMap<T, O extends ObservableInput<any>>(project: (value: T, index: number) => O): OperatorFunction<T, ObservedValueOf<O>>
[src]

§Type Parameters

§
O extends ObservableInput<any>
[src]

§Parameters

§
project: (value: T, index: number) => O
[src]
§
switchMap<T, O extends ObservableInput<any>>(project: (value: T, index: number) => O, resultSelector: undefined): OperatorFunction<T, ObservedValueOf<O>>
[src]

§Type Parameters

§
O extends ObservableInput<any>
[src]

§Parameters

§
project: (value: T, index: number) => O
[src]
§
resultSelector: undefined
[src]
§
switchMap<T, R, O extends ObservableInput<any>>(project: (value: T, index: number) => O, resultSelector: (outerValue: T, innerValue: ObservedValueOf<O>, outerIndex: number, innerIndex: number) => R): OperatorFunction<T, R>
[src]

§Type Parameters

§
O extends ObservableInput<any>
[src]

§Parameters

§
project: (value: T, index: number) => O
[src]
§
resultSelector: (outerValue: T, innerValue: ObservedValueOf<O>, outerIndex: number, innerIndex: number) => R
[src]

§Return Type