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calculator using html css and javascript

Crispyrice answered on May 9, 2023 Popularity 9/10 Helpfulness 2/10

answer calculator using html css and javascript

calculator using html css and javascript

Comment

-1

<!DOCTYPE html>
<html>
<head>
	<title>Simple Calculator</title>
	<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
	<div class="container">
		<div class="output">
			<div class="result" id="result">0</div>
		</div>
		<div class="buttons">
			<button onclick="clearResult()">C</button>
			<button onclick="addOperator('/')">÷</button>
			<button onclick="addOperator('*')">x</button>
			<button onclick="addToResult('7')">7</button>
			<button onclick="addToResult('8')">8</button>
			<button onclick="addToResult('9')">9</button>
			<button onclick="addOperator('-')">-</button>
			<button onclick="addToResult('4')">4</button>
			<button onclick="addToResult('5')">5</button>
			<button onclick="addToResult('6')">6</button>
			<button onclick="addOperator('+')">+</button>
			<button onclick="addToResult('1')">1</button>
			<button onclick="addToResult('2')">2</button>
			<button onclick="addToResult('3')">3</button>
			<button onclick="calculate()">=</button>
			<button onclick="addToResult('0')">0</button>
			<button onclick="addToResult('.')">.</button>
		</div>
	</div>
	<script src="script.js"></script>
</body>
</html>

CSS

.container {
  width: 300px;
  margin: 50px auto;
}

.output {
  border: 1px solid #ccc;
  background-color: #f9f9f9;
  text-align: right;
  padding: 10px;
  font-size: 24px;
}

.buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-gap: 5px;
  margin-top: 10px;
}

button {
  border: none;
  background-color: #eee;
  padding: 10px;
  font-size: 20px;
  cursor: pointer;
}

button:hover {
  background-color: #ddd;
}

JavaScript

let result = document.getElementById('result');
let operator = '';
let operand1 = 0;
let operand2 = 0;

function clearResult() {
  result.innerText = '0';
  operand1 = 0;
  operand2 = 0;
  operator = '';
}

function addToResult(value) {
  if (result.innerText === '0') {
    result.innerText = value;
  } else {
    result.innerText += value;
  }
}

function addOperator(op) {
  operator = op;
  operand1 = parseFloat(result.innerText);
  result.innerText = '0';
}

function calculate() {
  operand2 = parseFloat(result.innerText);
  let resultValue = 0;
  switch (operator) {
    case '/':
      resultValue = operand1 / operand2;
      break;
    case '*':
      resultValue = operand1 * operand2;
      break;
    case '-':
      resultValue = operand1 - operand2;
      break;
    case '+':
      resultValue = operand1 + operand2;
      break;
  }
  result.innerText = resultValue.toString();
  operator = '';
  operand1 = 0;

Popularity 9/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: calculator css html javascript using

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Contributed on May 09 2023

Crispyrice

0 Answers Avg Quality 2/10

calculator using html css and javascript

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