// 节流
export function throttle(fn, wait = 200) {
	let last, timer, now;
	return function() {
		now = Date.now();
		if (last && now - last < wait) {
			clearTimeout(timer);
			timer = setTimeout(function() {
				last = now;
				fn.call(this, ...arguments);
			}, wait);
		} else {
			last = now;
			fn.call(this, ...arguments);
		}
	};
}
// 防抖
export function debounce(fn, wait = 200) {
	let timer;
	return function() {
		let context = this;
		let args = arguments;
		if (timer) clearTimeout(timer);
		timer = setTimeout(() => {
			fn.apply(context, args);
		}, wait)
	}
}
export default {
	throttle,
	debounce
}
