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ReactiveModule Overview

ReactiveModule Overview

BoolSignal

BoolSignal

Contents

Contents

The BoolSignal class monitors a boolean value.

Properties

This module exposes no properties.

Methods

Method	Description
`and`	and(other: BoolSignal): BoolSignal Returns a signal with the value that is the logical conjunction of the values of the given signals. It is `true` every time both input signals are `true` and `false` at all other times. See Also: `BoolSignal.and`
`delayBy`	delayBy(timeSpan: {milliseconds: number}): ISignal Delays a signal. The argument is an object with a "milliseconds" property specifying the delay duration in milliseconds.
`eq`	eq(other: BoolSignal \| boolean): BoolSignal Returns a Boolean signal that takes the value of `true` every time when the value of the left-hand-side signal is equal to the value of the right-hand-side one, and the value of `false` all other time. Note: the scalar values are tested for exact equality. For some applications it might be reasonable to perform a non-strict comparison allowing the values to be within a small distance one from another. See Also: `ReactiveModule.eq`
`history`	history(framesCount: number, initialValues?: Array<boolean>): SignalHistory<boolean> Returns an object used to access signal values from past frames. The amount of frames tracked is customizable via `framesCount` parameter. Historical signal values are going to be initialized with signal value at call time or using `initialValues` if provided.
`ifThenElse`	ifThenElse<T, U>(thenValue: EventSource<T>, elseValue: EventSource<U>): EventSource<T \| U> ifThenElse(thenValue: ScalarSignal \| number, elseValue: ScalarSignal \| number): ScalarSignal ifThenElse(thenValue: StringSignal \| string, elseValue: StringSignal \| string): StringSignal ifThenElse(thenValue: BoolSignal \| boolean, elseValue: BoolSignal \| boolean): BoolSignal Returns a signal or an `EventSource` which at any point of time takes the value (passes the events in case of `EventSource`) of one or another inputs, depending on the momentary value of the given `BoolSignal`.
`monitor`	monitor(config?: {fireOnInitialValue?: false \| true}): EventSource<{newValue: boolean, oldValue: boolean}> Returns an `EventSource` that emits an event every time the value of the input signal changes. The event contains a JSON object with the old and new values in the format: { "oldValue": boolean, "newValue": boolean } Note: By default, there is no event fired for the initial value of the signal. If `config.fireOnInitialValue` is set to `true` then an event for initial signal value is also emitted. `oldValue` is unset for this initial event.
`ne`	ne(other: BoolSignal \| boolean): BoolSignal Returns a Boolean signal that takes the value of `true` every time when the value of the left-hand-side signal is not equal to the value of the right-hand-side one, and the value of `false` all other time. Note: the scalar values are tested for exact equality. For some applications it might be reasonable to perform a non-strict comparison allowing the values to be within a small distance one from another. See Also: `ReactiveModule.ne`
`not`	not(): BoolSignal Returns a signal with the logically negated value of the given signal. See Also: `ReactiveModule.not`
`onOff`	onOff(config?: {fireOnInitialValue?: false \| true}): EventSource<{newValue: boolean, oldValue: boolean}> Returns an `EventSource` that emits an event every time the value of the input signal changes to `false`. The event contains a JSON object with the old and new values in the format: { "oldValue": boolean, "newValue": boolean } Note: By default, there is no event fired for the initial value of the signal if it's `false` straight away. If `config.fireOnInitialValue` is set to `true` then an event for initial signal value is also emitted. `oldValue` is unset for this initial event.
`onOn`	onOn(config?: {fireOnInitialValue?: false \| true}): EventSource<{newValue: boolean, oldValue: boolean}> Returns an `EventSource` that emits an event every time the value of the input signal changes to `true`. The event contains a JSON object with the old and new values in the format: { "oldValue": boolean, "newValue": boolean } Note: By default, there is no event fired for the initial value of the signal if it's `true` straight away. If `config.fireOnInitialValue` is set to `true` then an event for initial signal value is also emitted. `oldValue` is unset for this initial event.
`or`	or(other: BoolSignal): BoolSignal Returns a signal with the value that is the logical disjunction of the values of the given signals. It is `true` every time at least one of the input signals is `true` and `false` at all other times. See Also: `BoolSignal.or`
`pin`	pin(): BoolSignal Returns a `BoolSignal` containing a constant value which is the value of the specified signal immediately after `pin` is called.
`pinLastValue`	pinLastValue(): ConstBoolSignal Returns a `ConstBoolSignal` containing a constant value which is the last value of the specified signal before `pinLastValue` is called. ConstBoolSignal can be passed to a functions which accept numbers.
`xor`	xor(other: BoolSignal \| boolean): BoolSignal Returns a signal with the value that is the logical exclusive disjunction of the values of the given signals. It is `true` every time exactly one of the input signals is `true` and `false` at all other times. Note: It is equivalent to `BoolSignal.ne`. See Also: `ReactiveModule.xor`