【javascript】防止暴力点击

/**
 * 
 * @param {*} fn 
 * @param {*} gapTime 
 * @returns 防爆点击
 */
const throttle =  (fn, gapTime) => {

    if (!gapTime) gapTime = 1500

    let _lastTime = null

    // 返回新的函数
    return function () {
        let _nowTime = +new Date()
        if (_nowTime - _lastTime > gapTime || !_lastTime) {
            fn.apply(this, arguments) //将this和参数传给原函数
            _lastTime = _nowTime
        }
    }
}