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    类 ObservableBoolean实验性

    An observable that holds a boolean value. Listeners are notified whenever the value changes.

    索引

    构造函数

    constructor

    方法

    getData setData subscribe unsubscribe

    构造函数

    方法

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      返回 boolean

      Returns the current boolean value held by this observable.

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      参数

      • data: boolean

        The new boolean value to set.

      返回 void

      Updates the boolean value held by this observable. If the new value differs from the current value, all subscribed listeners are notified with the new value.

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      参数

      • callback: (arg0: boolean) => void

        A function that receives the new boolean value each time the observable changes.

      返回 (arg0: boolean) => void

      Registers a callback to be invoked whenever the observable's value changes. Returns the callback, which can be passed to unsubscribe to remove the listener.

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      参数

      • callback: (arg0: boolean) => void

        The callback handle previously returned by subscribe.

      返回 boolean

      Removes a previously registered listener from this observable. Returns true if the listener was found and removed, false if it was not found.

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