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29 lines
770 B
TypeScript
29 lines
770 B
TypeScript
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export declare class ObservableSet<V> extends Set<V> {
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private readonly listener;
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constructor(listener: (map: ObservableSet<V>) => void, init?: Iterable<V>);
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add(value: V): this;
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delete(value: V): boolean;
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clear(): void;
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}
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/**
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* Create and return a [Set](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set) that triggers rerenders when it's updated.
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*
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* ```ts
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* const ids = useSet<number>([1,2,3,4]);
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*
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* return (
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* <>
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* {Array.from(ids, id => (
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* <div>
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* id: {id}. <button onClick={() => ids.delete(id)}>X</button>
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* </div>
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* )}
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* </>
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* )
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* ```
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*
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* @param init initial Set values
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*/
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declare function useSet<V>(init?: Iterable<V>): ObservableSet<V>;
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export default useSet;
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