11.11 双十一 前端教你一键领取天猫千张优惠券 （领前先想想有没有钱花这些优惠券）

(function(window, document, undefined) {

var interval = 800;

var closeDelay = 200;

var index = 0;

var couponLinks;

var getCoupon = function() {

if (index >= couponLinks.length) {

console.log("领取完毕");

return;

}

var coponLink = couponLinks[index];

coponLink.click(); index++;

console.log("领取 第" + index + " 张");

setTimeout(getCoupon, interval);

setTimeout(function() {

var close = document.querySelector(‘.mui-dialog-close‘);

if (close != null) close.click();

}, closeDelay);

}

var _scrollTop = 0;

var _scrollStep = document.documentElement.clientHeight;

var _maxScrollTop = document.body.clientHeight - document.documentElement.clientHeight;

var autoScrollDown = setInterval(function() {

_scrollTop += _scrollStep;

if (_scrollTop > _maxScrollTop) {

clearInterval(autoScrollDown);

couponLinks = document.querySelectorAll(‘.j_ReceiveCoupon‘);

console.log("总共：" + couponLinks.length + "条张优惠券待领取...");

getCoupon();

} else {

document.body.scrollTop = _scrollTop;

}

}, 500);

}) (window, document);