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Freed-Wu / fast teaching evaluation

// ==UserScript==
// @name         fast teaching evaluation
// @namespace    https://github.com/Freed-Wu
// @version      0.0.1
// @description  Evaluate teaching of NJUST.
// @license      GPL-3.0-or-later; https://www.gnu.org/licenses/gpl-3.0.txt
// @author       Wu Zhenyu
// @match        *://202.119.81.113:9080/njlgdx/xspj/*
// @grant        none
// ==/UserScript==
let inputs = document.querySelectorAll("input[type=radio]");
let choices = [];
// count of evaluation metric is less than 20
for (let i = 0; i < 20; i++) {
  choices.push(Math.floor(Math.random() * 3));
}
let order = 0;
// every evaluation metric has 5 choices: very good, good, normal, bad, very bad
for (input of inputs) {
  if (choices[Math.floor(order / 5)] == order++ % 5) {
    input.checked = true;
  }
}