The project aims to create an interactive calculator with web technologies using JavaScript, HTML, and CSS. The calculator will offer an easy-to-use interface for carrying out fundamental arithmetic calculations. Users will be able to enter numbers, calculate, and view the results dynamically.

Explanation:

The project aims to create an interactive calculator by utilizing web technologies including JavaScript, HTML, and CSS. The calculator’s user-friendly layout makes it easy to execute fundamental mathematical calculations. Users can enter numbers, carry out calculations, and view the dynamic results.

The calculator’s simple, user-friendly design suits users of all skill levels. It is compatible with all common mathematical operations, including division, multiplication, and subtraction. The calculator provides immediate feedback by updating the result in real-time as users enter numbers or conduct operations.

To guarantee precise computations, error handling is also incorporated into the project. Common problems like entering invalid characters or dividing by zero are handled by it, and it provides the relevant error messages or warnings.

The calculator provides a comfortable and pleasing user experience with its elegant and visually appealing design. It is the perfect tool for anyone who needs to do quick and precise calculations on the web because it blends style and usefulness.

All things considered, this project offers a fun and effective way to carry out simple mathematical operations in a way that is both aesthetically pleasing and easy to use.

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Important characteristics:

  • User-friendly interface: Users will find it simple to complete calculations with the calculator’s clear, simple user interface.
  • Basic operations: It will assist with addition, subtraction, multiplication, and division, among other fundamental mathematical operations.
  • Dynamic calculation: As the user enters numbers or carries out operations, the calculator updates the result in real time.
  • Clear functionality: To clear the entered numbers or reset the calculator, there will be a clear button.
  • Error handling: Common mistakes like dividing by zero or inputting incorrect characters will be handled by the calculator.

Let’s now examine the JavaScript, HTML, and CSS code used to construct the calculator’s eye-catching user interface:

Source Code

HTML

<!DOCTYPE html>
<html>
<head>
 <title>Interactive Calculator</title>
 <link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
 <div class="calculator">
 <input type="text" id="result" readonly>
 <div class="buttons">
 <button onclick="clearResult()">C</button>
 <button onclick="appendNumber(7)">7</button>
 <button onclick="appendNumber(8)">8</button>
 <button onclick="appendNumber(9)">9</button>
 <button onclick="appendOperator('+')">+</button>
 <button onclick="appendNumber(4)">4</button>
 <button onclick="appendNumber(5)">5</button>
 <button onclick="appendNumber(6)">6</button>
 <button onclick="appendOperator('-')">-</button>
 <button onclick="appendNumber(1)">1</button>
 <button onclick="appendNumber(2)">2</button>
 <button onclick="appendNumber(3)">3</button>
 <button onclick="appendOperator('*')">*</button>
 <button onclick="appendNumber(0)">0</button>
 <button onclick="appendOperator('/')">/</button>
 <button onclick="calculate()">=</button>
 </div>
 </div>
 <script data-two_delay_id="two_657ad4ee44417" data-two_delay_src="script.js"></script>
</body>
</html>

CSS:

/*@ayanhacks.me*/

body {
 background-color: #f2f2f2;
 font-family: Arial, sans-serif;
}

.calculator {
 max-width: 400px;
 margin: 0 auto;
 background-color: #fff;
 border-radius: 10px;
 padding: 20px;
 box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

#result {
 width: 100%;
 height: 40px;
 font-size: 20px;
 text-align: right;
 margin-bottom: 10px;
}

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

button {
 height: 40px;
 font-size: 18px;
 background-color: #eaeaea;
 border: none;
 border-radius: 5px;
 cursor: pointer;
}

button:hover {
 background-color: #d2d2d2;
}

body {
 background-image: linear-gradient(to left bottom, #00ffff, #00fce7, #00f8c8, #00f2a3, #00eb7a);
 background-repeat: no-repeat;
 background-attachment: fixed;
 background-size: cover;
}

JavaScript (script.js):

//@ayanhacks.me//

let expression = '';

function appendNumber(number) {
 expression += number;
 document.getElementById('result').value = expression;
}

function appendOperator(operator) {
 expression += operator;
 document.getElementById('result').value = expression;
}

function clearResult() {
 expression = '';
 document.getElementById('result').value = '';
}

function calculate() {
 try {
 const result = eval(expression);
 document.getElementById('result').value = result;
 expression = '';
 } catch (error) {
 document.getElementById('result').value = 'Error';
 }
}

Output be Like:

See the Pen Calculator by Ayan Hussain (@Ayan-Hussain) on CodePen.

Conclusion

To sum up, the project successfully attempts to use HTML, CSS, and JavaScript online technologies to construct an interactive calculator. With its intuitive UI, the calculator is easy to use for users of all skill levels. It covers basic mathematical operations such as addition, subtraction, multiplication, and division and has an easy-to-use interface. Instantaneous feedback is provided by real-time dynamic calculation updates, which improve the user experience overall.

To guarantee reliable results, the project also includes strong error handling that handles typical problems like division by zero or improper inputs. The calculator’s aesthetically pleasing design blends beauty and utility to provide a rapid and precise online calculating solution.

The calculator’s general dependability and clarity are enhanced by the highlighted important features, which include an easy-to-reset clear button and error-handling capabilities. Examining the given HTML, CSS, and JavaScript code makes it clear that the project’s goal is to provide a useful and effective tool for carrying out simple mathematical operations in a way that is both aesthetically pleasing and easy to use.

Categorized in:

HTML Projects,

Last Update: December 14, 2023