-节流函数
function throttle(fn, wait) {
let sTime = 0, eTime;
return () => {
eTime = Date.now();
if(eTime - sTime < wait) return;
fn();
sTime = eTime;
}
}
-防抖函数
funtion debounce(fn, wait) {
let timer = null;
return () => {
clearTimeout(timer);
timer = setTimeout(fn, wait)
}
}
