Function throttle

packages/core/utils/shared.ts:29–40

(fn: Function, delay = 300)

 * @returns A new throttled function
 */
export function throttle(fn: Function, delay = 300) {
	let waiting = false;
	return function (...args) {
		if (!waiting) {
			fn.apply(this, args);
			waiting = true;
			setTimeout(function () {
				waiting = false;
			}, delay);
		}
	};
}