- filter_<A, E, B>(self: Source<A, E>, pred: ((a: A) => a is B)): Source<B, E>
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Parameters
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pred: ((a: A) => a is B)
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- (a: A): a is B
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Returns a is B
Returns Source<B, E>
- filter_<A, E>(self: Source<A, E>, pred: ((a: A) => boolean)): Source<A, E>
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Parameters
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pred: ((a: A) => boolean)
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- (a: A): boolean
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Returns boolean
Returns Source<A, E>