Function combine

combine<T, U, R>(source1: Observable<T>, source2: Observable<U>, map: ((c: readonly [T, U]) => R), options?: combineOptions<T, U>): Observable<R>
Combine two observables with a map function and an optional pre-treatment.

Note: you can use the pre-treatment to add a filter, a distinctUntilChanged, any other operator that can be used in a pipe, or even an UntilDestroy operator.

Returns
an observable that emits the result of the map function

See
- combineLatest
- mapOperator
Type Parameters
Type Parameters
- T
- U
- R
Parameters
- source1: Observable<T>
  
  first source of data
- source2: Observable<U>
  
  second source of data
- map: ((c: readonly [T, U]) => R)
  
  way to combine data
  - - (c: readonly [T, U]): R
    - Parameters
      
      c: readonly [T, U]
      
      Returns R
- Optional options: combineOptions<T, U>
  
  options for the combineLatest operator
Returns Observable<R>
- Defined in helper/observable.ts:32

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