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ngohuudang/avg.js

Forked from shivaluma/avg.js
Created April 20, 2021 13:14
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Tinh diem trung binh hcmus
Raw
avg.js
// tinh diem trung binh hcmus, vao trang diem va paste vao console.
// khong tinh anh van, quoc phong, the duc va nhung mon rot
var tinchi = document.querySelectorAll("td:nth-child(3)");
var monhoc = document.querySelectorAll("td:nth-child(2)");
var diem = document.querySelectorAll("td:nth-child(6)");
var diemtren = 0,
diemduoi = 0;
for (var i = 1; i < tinchi.length; i++) {
if (
monhoc[i].innerText.includes("Thể dục") ||
monhoc[i].innerText.includes("Anh văn") ||
monhoc[i].innerText.includes("Giáo dục") || Number(diem[i].innerText) < 5
) {
continue;
}
diemtren += Number(tinchi[i].innerText) * Number(diem[i].innerText);
diemduoi += Number(tinchi[i].innerText);
}
console.log("Tong tin chi : " + diemduoi);
console.log("Diem trung binh : " + diemtren / diemduoi);
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