javaScript防抖debounce

防抖函数

简单的防抖函数

function debounce(fn, delay) {
	let timer = null;
	return function() {
		if(timer) {
			clearTimeout(timer)
			timer = setTimeOut(fn, delay)
		} else {
			timer = setTimeOut(fn, delay)
		}
	}
}