Calculate total value of Discogs wantlist

discogs-wantlist.js

// Open this page: https://www.discogs.com/mywantlist?page=1&limit=250,
// open your Developer Tools console (right click -> inspect element, 
// console tab), then paste the code below into the console.
//
// If you have more than 250 records in your Wantlist, run this
// code on each page of your Wantlist.

console.log("total value is $" + 
            [].slice.call(document.querySelectorAll("span.price"))
              .map(el => parseFloat(el.innerText.slice(1)))
              .reduce((p, c) => p + c, 0)
              .toFixed(2))