Calc avg score from UTN FRD website

index.js

const strmap = {
	"diez": 10,
	"nueve": 9,
	"ocho": 8,
	"siete": 7,
	"seis": 6,
	"cinco":5,
	"cuatro": 4,
	"tres": 3,
	"dos": 2,
	"uno": 1,
	"cero": 0,
}


function avg(list) {
	const n = list.length;
	const sum = list.reduce((acc, next) => acc + next, 0)
	return sum/n
}

function calc_avgs() {
	const elements = document.querySelectorAll('table table tr > td:nth-child(3)')
	const list = Array.from(elements).map(e => e.innerHTML).map(s => strmap[s]).filter(n => Number.isFinite(n))
	const avg1 = avg(list)
	const avg2 = avg(list.filter(n => n>3))
	return [avg1, avg2]
}

const [avg1, avg2] = calc_avgs()

console.log("promedio con desaprovados", avg1)
console.log("promedio sin desaprovados", avg2)