18 lines
683 B
TypeScript
18 lines
683 B
TypeScript
export const UNAVAILABLE = 'unavailable';
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export const BINARY_STATE_ON = 'on';
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export const BINARY_STATE_OFF = 'off';
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const arrayLiteralIncludes = <T extends readonly unknown[]>(array: T) => (
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searchElement: unknown,
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fromIndex?: number,
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): searchElement is T[number] => array.includes(searchElement as T[number], fromIndex);
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export const UNKNOWN = 'unknown';
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export const ON = 'on';
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export const OFF = 'off';
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export const UNAVAILABLE_STATES = [UNAVAILABLE, UNKNOWN] as const;
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export const OFF_STATES = [UNAVAILABLE, UNKNOWN, OFF] as const;
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export const isUnavailableState = arrayLiteralIncludes(UNAVAILABLE_STATES);
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export const isOffState = arrayLiteralIncludes(OFF_STATES);
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