steam-calculator , 获取 steam 消费总金额

steam-calculator.js

/**
 *  获取 steam 消费总金额
 *     打开 https://store.steampowered.com/account/history/ 贴入 console 运行
 *     XXX: 不支持卡片交易之类生成的金额，且当前显示金额为人民币
 *     截止 2017/4/13 日，消费约 3526.44 元
 */

var total = 0
  , USD_EXCHANGE_RATE = 6

jQuery('.wht_total').each(function(){
  var el = jQuery(this)
    , text = el.text()
    , numberMatched = text.trim().match(/\d+(\.\d+)?/)
  if(!numberMatched) { return }
  
  var number = +numberMatched[0]

  if(/USD/.test(text)) {
    number = number *　USD_EXCHANGE_RATE
  }
  
  total += (el.hasClass('wht_refunded') ? -1 : 1) * number
})

console.log('消费总计约为：')
console.log(total)