Calculate your FOCS grade on gradescope
目前為
// ==UserScript==
// @name FOCS Grade Calculator
// @namespace https://aaron1011.pw
// @version 0.1.3
// @description Calculate your FOCS grade on gradescope
// @author Aaron1011
// @match https://www.gradescope.com/courses/35880
// @grant none
// ==/UserScript==
(function() {
'use strict';
function percentToLetter(percent) {
percent = Math.round(percent * 100);
// Each list item is of the form [minimum score, letter grade]
var table = [[93, "A"], [90, "A-"], [87, "B+"], [83, "B"], [80, "B-"], [77, "C+"], [73, "C"], [70, "C-"], [67, "D+"], [60, "D"], [0, "F"]];
for (var i = 0; i < table.length; i++) {
if (percent >= table[i][0]) {
return table[i][1];
}
}
throw new Error("Impossible case reached for percent " + percent);
}
function calculate(homeworkAvg, exam1, exam2, final) {
// https://www.cs.rpi.edu/~pattes3/csci2200/general-info-2019.pdf
var total = (0.2 * (homeworkAvg)) + (0.25 * exam1) + (0.25 * exam2) + (0.3 * final);
var letter = percentToLetter(total);
return {
total: total,
letter: letter
}
}
function injectCalculator(data) {
var section = document.querySelector("section");
var wrapperDiv = document.createElement("div");
wrapperDiv.setAttribute("id", "focs-grade-calculator-tampermonkey");
var title = document.createElement("h2");
// Add two line breaks
title.appendChild(document.createElement("br"));
title.appendChild(document.createElement("br"));
title.textContent = "FOCS Grade calculator script";
title
var formula = document.createElement("h3");
formula.innerHTML = "Formula: ((0.2 * HW) + (.25 * Exam1) + (.25 * Exam2) + (.30 * FinalExam)) [from <a href='https://www.cs.rpi.edu/~pattes3/csci2200/general-info-2019.pdf'>https://www.cs.rpi.edu/~pattes3/csci2200/general-info-2019.pdf</a>]";
var finalGrade = document.createElement("p");
var finalGradeLetter = document.createElement("p");
wrapperDiv.appendChild(title);
var homeworkValues = [];
var exam1 = data.exam1;
var exam2 = data.exam2;
var final = data.final;
function recalculate() {
var newHomeworkTotal = data.homeworkTotal;
for (var i = 0; i < homeworkValues.length; i++) {
newHomeworkTotal += homeworkValues[i];
}
var homeworkAvg = newHomeworkTotal / (data.numHomeworks + homeworkValues.length);
var newOverall = calculate(homeworkAvg, exam1, exam2, final);
finalGrade.textContent = "Overall score: " + (newOverall.total * 100).toFixed(2);
finalGradeLetter.textContent = "Letter grade: " + newOverall.letter;
}
function onChange(i, score, entry) {
var normalizedScore = score / 100;
if (normalizedScore > 1 || normalizedScore < 0) {
throw new Error("Impossible normalized score " + normalizedScore + " " + score);
}
if (entry.type === "homework") {
homeworkValues[i] = normalizedScore;
} else if (entry.type == "exam1") {
exam1 = normalizedScore;
} else if (entry.type == "exam2") {
exam2 = normalizedScore;
} else if (entry.type == "final") {
final = normalizedScore;
}
recalculate();
}
for (var i = 0; i < data.graded.length; i++) {
var entry = data.graded[i];
var label = document.createElement("label");
label.textContent = entry.value;
wrapperDiv.appendChild(label);
wrapperDiv.appendChild(document.createElement("br"));
}
for (var i = 0; i < data.ungraded.length; i++) {
(function(i) {
var entry = data.ungraded[i];
var sliderWrapper = document.createElement("div");
sliderWrapper.setAttribute("id", "focs-grade-calculator-tampermonkey-homework-slider-wrapper-" + entry.name);
var sliderName = "focs-grade-calculator-tampermonkey-homework-slider-" + entry.name;
var sliderLabel = document.createElement("label");
sliderLabel.setAttribute("for", sliderName);
sliderLabel.textContent = entry.name + " percentage:";
var sliderVal = document.createElement("input");
sliderVal.setAttribute("type", "text");
sliderVal.setAttribute("style", "width: 40px");
sliderVal.value = entry.default * 100;
var slider = document.createElement("input");
slider.setAttribute("type", "range");
slider.setAttribute("min", "0");
slider.setAttribute("max", "100");
slider.setAttribute("name", sliderName);
slider.value = entry.default * 100;
slider.addEventListener('input', function() {
var score = slider.value;
sliderVal.value = score;
onChange(i, score, entry);
});
sliderVal.addEventListener('input', function() {
var score = sliderVal.value;
slider.value = score;
onChange(i, score, entry);
})
if (entry.type == "homework") {
homeworkValues.push(entry.default);
}
sliderWrapper.appendChild(sliderLabel);
sliderWrapper.appendChild(sliderVal);
sliderWrapper.appendChild(slider);
wrapperDiv.appendChild(sliderWrapper);
})(i);
}
wrapperDiv.appendChild(finalGrade);
wrapperDiv.appendChild(finalGradeLetter);
section.appendChild(wrapperDiv);
recalculate();
}
var assignments = document.querySelectorAll("tbody tr");
var homeworkTotal = 0;
var numHomeworks = 0;
var exam1 = -1;
var exam2 = -1;
var final = -1;
var graded = [];
for (var i = 0; i < assignments.length; i++) {
var assignment = assignments[i];
var name = assignment.querySelector(".table--primaryLink").textContent;
var scoreElem = assignment.querySelector(".submissionStatus--score");
var score = (scoreElem ? scoreElem.textContent : "");
var scoreFrac = "<No Score>";
if (score !== "") {
var split = score.split("/");
scoreFrac = parseFloat(split[0]) / parseFloat(split[1]);
if (name.startsWith("Homework")) {
homeworkTotal += scoreFrac;
numHomeworks++;
graded.push({value: name + " (graded): " + Math.round(scoreFrac * 100)});
} else if (name.startsWith("Exam 1")) {
exam1 = scoreFrac;
graded.push({value: "Exam 1: (graded): " + Math.round(scoreFrac * 100)});
} else if (name.startsWith("Exam 2")) {
exam2 = scoreFrac;
graded.push({value: "Exam 2: (graded): " + Math.round(scoreFrac * 100)});
}
}
console.log("Assignment: " + name);
console.log("Score: " + scoreFrac);
}
var ungraded = [];
// There are eight homeworks total
for (var j = numHomeworks + 1; j <= 8; j++) {
ungraded.push({name: "Homework " + j, type: "homework", min: 0, max: 50, default: .80});
}
if (exam1 == -1) {
console.error("Exam 1 has not been graded! Using score of 80 for exam 1 score!");
exam1 = 80;
ungraded.push({name: "Exam 1", type: "exam1", min: 0, max: 100, default: exam1});
}
if (exam2 == -1) {
console.error("Exam 2 has not been graded! Using exam 1 score of " + exam1 + " for exam 2 score");
exam2 = exam1;
ungraded.push({name: "Exam 2", type: "exam2", min: 0, max: 100, default: exam2});
}
if (final == -1) {
console.error("Final exam has not been graded! Using exam 2 score of " + exam2 + " for final exam score");
final = exam2;
ungraded.push({name: "Final exam", type: "final", min: 0, max: 100, default: final});
}
var data = {
ungraded: ungraded,
graded: graded,
homeworkTotal: homeworkTotal,
numHomeworks: numHomeworks,
exam1: exam1,
exam2: exam2,
final: final
}
injectCalculator(data);
})();
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