ra-core/dist/util/asyncDebounce.js

Core components of react-admin, a frontend Framework for building admin applications on top of REST services, using ES6, React

import debounce from 'lodash/debounce.js';
/**
 * A version of lodash/debounce that always returns a promise but wait for the debounced function to return to resolve it.
 * @param func The function to debounce
 * @param wait The debounce delay
 * @returns A debounced function that returns a promise
 */
export function asyncDebounce(func, wait) {
    const resolveSet = new Set();
    const rejectSet = new Set();
    const debounced = debounce((args) => {
        func(...args)
            .then((...res) => {
            resolveSet.forEach(resolve => resolve(...res));
        })
            .catch((...res) => {
            rejectSet.forEach(reject => reject(...res));
        })
            .finally(() => {
            resolveSet.clear();
            rejectSet.clear();
        });
    }, wait);
    return (...args) => new Promise((resolve, reject) => {
        resolveSet.add(resolve);
        rejectSet.add(reject);
        debounced(args);
    });
}
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