Operator - And-then-when

Observable.and_(right)

Creates a pattern that matches when both observable sequences have an available value.

Parameters:	right (Observable) – Observable sequence to match with the current sequence.
Returns:	Pattern object that matches when both observable sequences have an available value.

Observable.then_do(selector)

Matches when the observable sequence has an available value and projects the value.

Parameters:	selector (types.FunctionType) – Selector that will be invoked for values in the source sequence.
Returns:	Plan that produces the projected values, to be fed (with other plans) to the when operator.
Return type:	Plan

classmethodObservable.when(*args)

Joins together the results from several patterns.

Parameters:	cls (Observable) – Observable class. args (list[Plan]) – A series of plans (specified as a list of as a series of arguments) created by use of the Then operator on patterns.
Returns:	Observable sequence with the results form matching several patterns.
Return type:	Observable

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