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22 lines
657 B
22 lines
657 B
//
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// mapAt.swift
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// RxSwiftExt
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//
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// Created by Michael Avila on 2/8/18.
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// Copyright © 2018 RxSwift Community. All rights reserved.
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//
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import RxSwift
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extension ObservableType {
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/**
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Returns an observable sequence containing as many elements as its input but all of them are mapped to the result at the given keyPath
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- parameter keyPath: A key path whose root type matches the element type of the input sequence
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- returns: An observable squence containing the values pointed to by the key path
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*/
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public func mapAt<R>(_ keyPath: KeyPath<E, R>) -> Observable<R> {
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return self.map { $0[keyPath: keyPath] }
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}
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}
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