one/dist/esm/utils/pLimit.mjs

One is a React framework for web, iOS, and Android apps.

function pLimit(concurrency) {
	const queue = [];
	let active = 0;
	const next = () => {
		if (active < concurrency && queue.length > 0) {
			active++;
			const fn = queue.shift();
			fn();
		}
	};
	return (fn) => {
		return new Promise((resolve, reject) => {
			queue.push(() => {
				fn().then(resolve).catch(reject).finally(() => {
					active--;
					next();
				});
			});
			next();
		});
	};
}

export { pLimit };
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