Creates a {Name: Sum} mapping of all the transactions on a Barclays bank statement page for a desired month

barclays_summer.js

(month_desired => { 
  let store = {}
  let transactions = document.querySelectorAll('.panel');
  for (let t of transactions) {
    let name = t.querySelector('.description').innerText;
    let amt = parseInt(t.querySelector('.amount').innerText.replace(/[^0-9.]/g, ''));
    let date = t.querySelector('.date').innerText;
    if (date.toLowerCase().substring(0,3) != month_desired) {
      console.log("Skipping", date);
    } else {
      let prev_amt = store[name] || 0;
      store[name] = prev_amt + amt;
    }
  }
  console.log(store);
})("dec")