Dinbendon auto answer

Auto fill answer when dinbendon login

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Dinbendon auto answer
// @namespace    http://tampermonkey.net/
// @version      0.3
// @description  Auto fill answer when dinbendon login
// @author       Yich Lin
// @include        https://dinbendon.net/do/login*
// @grant        none
// @require https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js
// @require https://greatest.deepsurf.us/scripts/5392-waitforkeyelements/code/WaitForKeyElements.js?version=115012
// ==/UserScript==

(function() {
    var selector = "td.alignRight:contains('='),td.alignRight:contains('等於'),td.alignRight:contains('=')";
        waitForKeyElements(selector, calculateAnswer);
    function calculateAnswer(){
        var formula = $(selector).html();
        var reg = /(\d+).*(\d+)/g
        var match = reg.exec(formula);
        var answer = parseInt(match[1])+parseInt(match[2]);
        $("input[name='result']").val(answer);
    }
})();