Calcalator for Ethermine payouts page | Tampermonkey script

tampermonkey_ethermine_total_calculation.js

// ==UserScript==
// @name         Ethermine total calculation
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Script for calculating the total of mined ETH
// @author       Leo LI
// @match        https://ethermine.org/miners/*/payouts
// @icon         https://www.google.com/s2/favicons?sz=64&domain=ethermine.org
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    setTimeout(() => {
        const calculateTotal = () => {
            let total = 0
            document.querySelectorAll('.number.amount')
                .forEach((element, index) => {
                    const amount = element.innerHTML
                    if (undefined === amount) {
                        return
                    }
                    total += Number.parseFloat(amount)
                })

            return total
        }

        const payoutsContainerDiv = document.querySelector('.payout-table-header')
        const additionalDiv = `
        <div class="heading">
            <button class="theme-button" id="btnCalculate" style="cursor: pointer;">Calculate total</button>
        </dvi>
        `
        payoutsContainerDiv.innerHTML += additionalDiv
        const btnCalculate = document.querySelector('#btnCalculate')
        btnCalculate.addEventListener('click', () => {
            const total = calculateTotal()
            btnCalculate.innerHTML = `Total: ${total.toFixed(5)} ETH`
        })
    }, 2000)
})();