List Challenges Export to CSV

download.js

// in each page

loc = localStorage.getItem('list_of_cities')
if (loc == null) {
    loc = []
}
else {
    loc = JSON.parse(loc)
}
a = loc
items = Object.values(document.querySelectorAll(".item-name")).map(i => i.innerText)
a.push(...items)
localStorage.setItem('list_of_cities', JSON.stringify(a))

// at the end

c = "data:text/csv;charset=utf-8,"  + a.join('\r\n')
var encodedUri = encodeURI(c);
window.open(encodedUri);