mergeMapTo

Each input starts the same inner Observable in parallel.

Signature

mergeMapTo(innerObservable: ObservableInput): OperatorFunction

What it does

Ignores the input value and subscribes to the given innerObservable for each source emission. The results merge like mergeMap.

When to use

Supporting legacy code. In new code, use mergeMap(() => inner$).

See also

mergeMap, mergeAll