Total up the cost of all items in an Amazon wishlist

gistfile1.js

var list = $$("#item-page-wrapper .list-items table tbody .lineItemMainInfo .lineItemPart strong");
var total=0;
for(i=0; i<list.length;i++){
  total += parseFloat(list[i].innerText.replace("$",""));
}
alert(list.length+" items for a total of: $"+total.toFixed(2));

amazon.es

var list = $$(".a-offscreen");
var total=0;
var numHidden = 0;
var temp=0;
for(i=0; i<list.length;i++){
temp = parseFloat(list[i].innerText.replace(" €","").replace(',','.'));
numHidden += isNaN(temp);
total += isNaN(temp) ? 0 : temp;
}
console.log(list.length - numHidden +" items for a total of: "+total.toFixed(2) + "€ less " + numHidden + " Hidden Items");
​

amazon br

var list = $$('.a-price'); var total=0;

for (var i = 0; i < list.length; i++) {
	total += parseFloat(list[i].innerText.split("R$")[1].replace(',','.')) ;
}

console.log("Total = " + total);

You can use the data-price attribute on the li. Tested on amazon com.

$$("li[data-price]").reduce((amount, li) => amount + parseFloat(li.getAttribute('data-price'), 0), 0.0)

This version takes into account elements without a price (such as items not available)

$$("li[data-price]").reduce((amount, li) => amount + Math.max(0, parseFloat(li.dataset['price'])), 0.0)

Latest Version:

$$('.a-price').map(_ => _.firstChild.innerText.replace('$', '')).map(_ => parseFloat(_)).reduce((a, v) => a + v)