@synapsecloud/lib-react/dist/hooks/useSet.js

Helper library for web applications built on React Js

import { useReducer } from 'react';
function createReducer() {
    return function (state, action) {
        switch (action.type) {
            case 'add': {
                state.set.add(action.value);
                break;
            }
            case 'delete': {
                state.set.delete(action.value);
                break;
            }
            case 'clear': {
                state.set.clear();
                break;
            }
            case 'reset': {
                return { set: new Set(action.values || []) };
            }
            default:
                break;
        }
        return {
            set: state.set,
        };
    };
}
export function useSet(arr = []) {
    const [state, dispatch] = useReducer(createReducer(), {
        set: new Set(arr),
    });
    return {
        add: (value) => {
            dispatch({ type: 'add', value });
            return value;
        },
        delete: (value) => {
            dispatch({ type: 'delete', value });
            return value;
        },
        clear: () => dispatch({ type: 'clear' }),
        reset: function (values = []) {
            dispatch({ type: 'reset', values });
            return this;
        },
        forEach: (callback) => state.set.forEach(callback),
        map: function (callback) {
            return [...state.set].map(callback);
        },
        has: (value) => state.set.has(value),
        entries: () => state.set.entries(),
        values: () => state.set.values(),
        keys: () => state.set.keys(),
        size: state.set.size,
        *[Symbol.iterator]() {
            const iterator1 = state.set[Symbol.iterator]();
            for (const item of iterator1) {
                yield item;
            }
        },
        [Symbol.toStringTag]: state.set[Symbol.toStringTag],
    };
}
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