NCTU Score Prettifier

nctu-score.user.js

// ==UserScript==
// @name     NCTU Score Prettifier
// @author   Sean
// @version  1
// @grant    none
// @include  https://regist.nctu.edu.tw/p_student/*
// ==/UserScript==

var grid = document.getElementById("GridView1");
var rows = grid.firstElementChild.children;
if (rows[0].children[7].innerText == "百分成績") {
  for (var i=0; i<rows.length; i++) {
    rows[i].children[0].outerHTML = ''; // 筆
    rows[i].children[0].outerHTML = ''; // 學期
    rows[i].children[0].outerHTML = ''; // 課號
    rows[i].children[0].outerHTML = ''; // 開課單位
    // 課程名稱
    rows[i].children[1].outerHTML = ''; // 選別
    // 學分, 百分成績, 等級成績, 評分方式, 成績狀態, 任課老師
    rows[i].children[7].outerHTML = ''; // 向度
  }

  for (var i=0; i<rows.length; i++) {
    var score = rows[i].children[2].innerText;
    if (score == "") score = "00";
    if (score == "通過") score = "60";
    rows[i].dataset.score = score;
  }

  for (var k=rows.length; k; k--)
    for (var i=2; i<k; i++)
        if (rows[i-1].dataset.score < rows[i].dataset.score)
          rows[i].parentNode.insertBefore(rows[i], rows[i-1]);

  grid.style.maxWidth = "720px";
  for (var i=1; i<rows.length; i++) {
    rows[i].children[6].style.width = '';
    rows[i].classList.remove("table_text", "table_alt");
    rows[i].classList.add(i&1 ? "table_text" : "table_alt");
  }
}