show per TB price on jd.com!
// ==UserScript==
// @name jd.com HDD per TB price
// @namespace http://exz.me/
// @version 0.2
// @description show per TB price on jd.com!
// @author Epix
// @match https://item.jd.com/*
// @grant GM_xmlhttpRequest
// ==/UserScript==
(function() {
'use strict';
if (document.querySelector('div.itemInfo-wrap > div.sku-name').innerText.indexOf('硬盘')!==-1 || document.querySelector('#crumb-wrap > div > div.crumb.fl.clearfix > div:nth-child(5) > a').innerText.indexOf('硬盘')!==-1){
var capRegex=/(\d+)T/;
var priceBaseUrl='https://p.3.cn/prices/mgets?type=1&skuIds=J_';
var itemEls1=Array.from(document.querySelectorAll('#choose-attr-2 > div.dd > div.item'));
var itemEls2=Array.from(document.querySelectorAll('#choose-attr-3 > div.dd > div.item'));
var itemEls=[].concat(itemEls1,itemEls2);
var skus=itemEls.map(itemEl=>'J_'+itemEl.getAttribute('data-sku'));
console.log(skus);
var priceUrl=priceBaseUrl+skus.join(',');
GM_xmlhttpRequest({
method:'GET',
url:priceUrl,
fetch:true,
onload:response=>{
var pricesList=JSON.parse(response.responseText);
var prices=new Map();
for (var price of pricesList) {
prices.set(price.id,price.p);
}
itemEls.forEach(itemEl=>{
var itemEla=itemEl.querySelector('a');
var itemSku=itemEl.getAttribute('data-sku');
var match=capRegex.exec(itemEla.innerText);
if (match){
var cap=match[1];
var perT=prices.get('J_'+itemSku)/parseInt(cap);
itemEla.text+=`(￥${perT.toFixed(2)}/TB)`;
}
});
}
});
}
})();