Today I will be teaching you how to create an addition calculator using HTML, CSS and JavaScript
HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Addition Calc</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div>
<h1>Two Number Addition Calculator</h1>
First Number: <input type="text" name="firstNum" id="firstNum"
placeholder="Enter a number"> <br>
Second Number: <input type="text" name="secondNum" id="secondNum"
placeholder="Enter another number"> <br>
<button type="button" id="addBtn">Add</button>
<div>Result is <span id="resultDisplay"> </span></div>
<script src="script.js"></script>
</div>
</body>
</html>CSS
body{
min-height: 100vh;
display: flex;
align-items: center;
justify-content: center;
}JavaScript
let firstNum = document.getElementById('firstNum');
let secondNum = document.getElementById('secondNum');
let addBtn = document.getElementById('addBtn');
let result = document.getElementById('resultDisplay');
addBtn.addEventListener('click', calculate);
function calculate(){
result.innerHTML = parseFloat(firstNum.value) + parseFloat(secondNum.value);
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