def for_in(cls, sources, result_selector):
"""Concatenates the observable sequences obtained by running the
specified result selector for each element in source.
sources -- {Array} An array of values to turn into an observable
sequence.
result_selector -- {Function} A function to apply to each item in the
sources array to turn it into an observable sequence.
Returns an observable {Observable} sequence from the concatenated
observable sequences."""
return Observable.concat(Enumerable.for_each(sources, result_selector))
def for_in(cls, sources, result_selector):
"""Concatenates the observable sequences obtained by running the
specified result selector for each element in source.
sources -- {Array} An array of values to turn into an observable
sequence.
result_selector -- {Function} A function to apply to each item in the
sources array to turn it into an observable sequence.
Returns an observable {Observable} sequence from the concatenated
observable sequences."""
return Observable.concat(Enumerable.for_each(sources, result_selector))
def concat(cls, *args):
"""Concatenates all the observable sequences.
1 - res = Observable.concat(xs, ys, zs)
2 - res = Observable.concat([xs, ys, zs])
Returns an observable sequence that contains the elements of each given
sequence, in sequential order.
"""
if isinstance(args[0], list):
sources = args[0]
else:
sources = list(args)
return concat(Enumerable.for_each(sources))
def concat(cls, *args):
"""Concatenates all the observable sequences.
1 - res = Observable.concat(xs, ys, zs)
2 - res = Observable.concat([xs, ys, zs])
Returns an observable sequence that contains the elements of each given
sequence, in sequential order.
"""
if isinstance(args[0], list):
sources = args[0]
else:
sources = list(args)
return concat(Enumerable.for_each(sources))
def catch_exception(cls, *args):
"""Continues an observable sequence that is terminated by an
exception with the next observable sequence.
1 - res = Observable.catch_exception(xs, ys, zs)
2 - res = Observable.catch_exception([xs, ys, zs])
Returns an observable sequence containing elements from consecutive
source sequences until a source sequence terminates successfully.
"""
if args and isinstance(args[0], list):
items = args[0]
else:
items = list(args)
return catch_exception(Enumerable.for_each(items))
def catch_exception(cls, *args):
"""Continues an observable sequence that is terminated by an
exception with the next observable sequence.
1 - res = Observable.catch_exception(xs, ys, zs)
2 - res = Observable.catch_exception([xs, ys, zs])
Returns an observable sequence containing elements from consecutive
source sequences until a source sequence terminates successfully.
"""
if args and isinstance(args[0], list):
items = args[0]
else:
items = list(args)
return catch_exception(Enumerable.for_each(items))
def start_with(self, *args, **kw):
"""Prepends a sequence of values to an observable sequence with an
optional scheduler and an argument list of values to prepend.
1 - source.start_with(1, 2, 3)
2 - source.start_with(Scheduler.timeout, 1, 2, 3)
Returns the source sequence prepended with the specified values.
"""
scheduler = kw.get("scheduler")
if not scheduler and isinstance(args[0], Scheduler):
scheduler = args.pop(0)
else:
scheduler = immediate_scheduler
sequence = [Observable.from_array(args, scheduler), self]
return concat(Enumerable.for_each(sequence))
def start_with(self, *args, **kw):
"""Prepends a sequence of values to an observable sequence with an
optional scheduler and an argument list of values to prepend.
1 - source.start_with(1, 2, 3)
2 - source.start_with(Rx.Scheduler.timeout, 1, 2, 3)
Returns the source sequence prepended with the specified values.
"""
scheduler = kw.get("scheduler")
if not scheduler and isinstance(args[0], Scheduler):
scheduler = args.pop(0)
else:
scheduler = immediate_scheduler
sequence = [Observable.from_array(args, scheduler), self]
return concat(Enumerable.for_each(sequence))
