防抖

防抖函数 func是用户传入需要防抖的函数 wait是等待时间

1
2
3
4
5
6
7
8
9
10
11
function debounce(func, wait = 50) {
    let timer = 0;
    return function (...args) {
        if (timer) clearTimeout(timer);
        timer = setTimeout(() => {
            timer = setTimeout(() => {
                func.apply(this, args)
            }, wait)
        })
    }
}