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firestar5683
32 lines
677 B
Python
32 lines
677 B
Python
from typing import TypeVar
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from reactivex import Observable, never
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from reactivex import operators as _
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_T = TypeVar("_T")
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def amb_(*sources: Observable[_T]) -> Observable[_T]:
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"""Propagates the observable sequence that reacts first.
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Example:
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>>> winner = amb(xs, ys, zs)
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Returns:
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An observable sequence that surfaces any of the given sequences,
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whichever reacted first.
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"""
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acc: Observable[_T] = never()
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def func(previous: Observable[_T], current: Observable[_T]) -> Observable[_T]:
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return _.amb(previous)(current)
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for source in sources:
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acc = func(acc, source)
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return acc
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__all__ = ["amb_"]
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