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AtCoder Graduation

Dispaly the year of graduation of the user.

  1. // ==UserScript==
  2. // @name         AtCoder Graduation
  3. // @namespace    matsu7874
  4. // @version      1.0
  5. // @description  Dispaly the year of graduation of the user.
  6. // @author       matsu7874
  7. // @match        https://atcoder.jp/users/*
  8. // @grant        none
  9. // ==/UserScript==
  10.  
  11. (function () {
  12.     'use strict';
  13.     let getBachelor = function (birthYear) {
  14.         return birthYear + 23;
  15.     }
  16.     let getMaster = function (birthYear) {
  17.         return birthYear + 25;
  18.     }
  19.     let createGraduatedRow = function (birthYear) {
  20.         let descriptionOfGraduated = "B: " + getBachelor(birthYear) + "卒?\nM: " + getMaster(birthYear) + "卒?";
  21.         let row = document.createElement("tr");
  22.         let rowHeader = document.createElement("th");
  23.         rowHeader.innerText = "卒業年度";
  24.         let rowDef = document.createElement("td");
  25.         rowDef.innerText = descriptionOfGraduated;
  26.         row.appendChild(rowHeader);
  27.         row.appendChild(rowDef);
  28.         return row;
  29.     }
  30.     let userInfoTable = document.querySelector("#main-container > div.row > div.col-sm-3 > table > tbody");
  31.     let rows = userInfoTable.getElementsByTagName("tr");
  32.     for (let i = 0; i < rows.length; ++i) {
  33.         if (rows[i].getElementsByTagName("th")[0].innerText === "誕生年") {
  34.             let birthYear = parseInt(rows[i].getElementsByTagName("td")[0].innerText, 10);
  35.             userInfoTable.appendChild(createGraduatedRow(birthYear));
  36.             break;
  37.         }
  38.     }
  39. })();

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