Small JS script to obtain your mean grade using the UPM page

mean_politecnicavirtual.js

// First you need to click the button to show your grades.
// Then open the console using F12 and copy and paste the following code
const tables = document.querySelectorAll("table#tabla_expediente")
let acc = 0
let sum = 0
tables.forEach(t => {
    Array.from(t.rows).forEach(r => {
        const col = r.cells[r.cells.length - 1]
        matches = /\((\d+\,*\d*)\)/gm.exec(col.innerText);
        if(matches !== null) {
            const grade = parseFloat(matches[1].replace(',', '.'))
            if (grade >= 5) {
            acc += 1
            sum += grade
            }
        }
    })
})
console.log("Tu media es de:", sum / acc)