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Update index.html
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1 changed files with 122 additions and 115 deletions
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@ -5,154 +5,161 @@
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>MilkNet | Calculator</title>
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<style>
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@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;700&display=swap');
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body {
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font-family: 'DM Sans', sans-serif;
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font-family: 'Arial', sans-serif;
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display: flex;
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justify-content: center;
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align-items: center;
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height: 100vh;
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background-color: #000;
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margin: 0;
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background-color: #000; /* Dark background */
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color: white; /* White text */
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}
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.calculator {
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background: #111;
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color: #fff;
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background-color: #000; /* Dark calculator background */
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padding: 20px;
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border-radius: 15px;
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box-shadow: 0px 4px 15px rgba(255, 255, 255, 0.2);
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text-align: center;
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box-shadow: 0 4px 10px rgba(0, 0, 0, 0.6);
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width: 280px;
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}
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input {
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width: 100%;
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height: 60px;
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text-align: center;
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font-size: 2em;
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margin-bottom: 15px;
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background: #222;
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color: #fff;
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border: none;
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height: 50px;
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font-size: 24px;
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padding: 10px;
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margin-bottom: 20px;
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background-color: #000;
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color: white;
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border: none;
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border-radius: 8px;
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text-align: center;
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}
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.buttons {
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display: grid;
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grid-template-columns: repeat(5, 1fr);
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grid-template-columns: repeat(4, 1fr);
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gap: 10px;
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}
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button {
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padding: 20px;
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font-size: 1.3em;
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font-weight: 500;
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font-size: 18px;
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border: none;
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background: #333;
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color: #fff;
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cursor: pointer;
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background-color: #444; /* Dark buttons */
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color: white;
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border-radius: 8px;
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transition: background 0.3s ease;
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cursor: pointer;
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transition: background-color 0.3s, transform 0.1s;
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}
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button:hover {
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background: #555;
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background-color: #555;
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}
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button:active {
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background-color: #666;
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transform: scale(0.98);
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}
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button:focus {
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outline: none;
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}
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.button-clear {
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background-color: #e63946;
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}
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.button-equal {
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background-color: #2a9d8f;
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grid-column: span 4;
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}
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.button-function {
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background-color: #f1faee;
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color: #333;
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}
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</style>
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</head>
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<body>
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<div class="calculator">
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<div class="calculator">
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<input type="text" id="display" disabled>
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<div class="buttons">
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<button onclick="clearDisplay()">C</button>
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<button onclick="appendToDisplay('(')">(</button>
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<button onclick="appendToDisplay(')')">)</button>
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<button onclick="appendToDisplay(' / ')">/</button>
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<button onclick="appendToDisplay(' * ')">*</button>
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<button class="button-clear" onclick="clearDisplay()">C</button>
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<button onclick="deleteLast()">←</button>
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<button class="button-function" onclick="appendToDisplay('%')">%</button>
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<button class="button-function" onclick="appendToDisplay('/')">/</button>
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<button onclick="appendToDisplay('7')">7</button>
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<button onclick="appendToDisplay('8')">8</button>
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<button onclick="appendToDisplay('9')">9</button>
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<button onclick="appendToDisplay(' - ')">-</button>
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<button onclick="appendToDisplay(' + ')">+</button>
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<button class="button-function" onclick="appendToDisplay('*')">*</button>
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<button onclick="appendToDisplay('4')">4</button>
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<button onclick="appendToDisplay('5')">5</button>
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<button onclick="appendToDisplay('6')">6</button>
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<button onclick="appendToDisplay('%')">%</button>
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<button class="button-function" onclick="appendToDisplay('-')">-</button>
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<button onclick="appendToDisplay('1')">1</button>
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<button onclick="appendToDisplay('2')">2</button>
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<button onclick="appendToDisplay('3')">3</button>
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<button class="button-function" onclick="appendToDisplay('+')">+</button>
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<button onclick="appendToDisplay('0')">0</button>
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<button onclick="appendToDisplay('.')">.</button>
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<button onclick="appendToDisplay('sin(')">sin</button>
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<button onclick="appendToDisplay('cos(')">cos</button>
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<button onclick="appendToDisplay('tan(')">tan</button>
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<button onclick="appendToDisplay('log(')">log</button>
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<button onclick="appendToDisplay('√(')">√</button>
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<button onclick="appendToDisplay('^')">x^y</button>
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<button onclick="appendToDisplay('π')">π</button>
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<button onclick="appendToDisplay('e')">e</button>
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<button onclick="appendToDisplay('!')">x!</button>
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<button onclick="calculateResult()">=</button>
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<button class="button-function" onclick="appendToDisplay('**')">^</button>
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<button class="button-function" onclick="appendToDisplay('sin(')">sin</button>
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<button class="button-function" onclick="appendToDisplay('cos(')">cos</button>
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<button class="button-function" onclick="appendToDisplay('tan(')">tan</button>
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<button class="button-function" onclick="appendToDisplay('(')">(</button>
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<button class="button-function" onclick="appendToDisplay(')')">)</button>
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<button class="button-equal" onclick="calculate()">=</button>
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</div>
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</div>
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<script>
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function appendToDisplay(value) {
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// Add spaces around operators
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if (['+', '-', '*', '/', '%', '^'].includes(value)) {
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// Check if there's already a space before or after the operator
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let display = document.getElementById('display').value;
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if (display && display.slice(-1) !== ' ' && !['+', '-', '*', '/', '%', '^'].includes(display.slice(-1))) {
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document.getElementById('display').value += ' ' + value + ' ';
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} else if (display === '') {
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document.getElementById('display').value += ' ' + value + ' ';
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} else {
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document.getElementById('display').value += value;
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}
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} else {
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document.getElementById('display').value += value;
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}
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}
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</div>
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<script>
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function clearDisplay() {
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document.getElementById('display').value = '';
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}
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function calculateResult() {
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function deleteLast() {
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let display = document.getElementById('display');
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display.value = display.value.slice(0, -1);
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}
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function appendToDisplay(value) {
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let display = document.getElementById('display');
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display.value += value;
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}
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function calculate() {
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let display = document.getElementById('display');
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try {
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let expression = document.getElementById('display').value;
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expression = expression.replace(/factorial\((\d+)\)/g, (match, num) => factorial(parseInt(num)));
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document.getElementById('display').value = eval(expression);
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display.value = eval(display.value.replace(/sin\(/g, 'Math.sin(').replace(/cos\(/g, 'Math.cos(').replace(/tan\(/g, 'Math.tan('));
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} catch (e) {
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alert('Invalid Expression');
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display.value = 'Error';
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}
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}
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function factorial(n) {
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if (n === 0 || n === 1) return 1;
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let result = 1;
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for (let i = 2; i <= n; i++) {
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result *= i;
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}
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return result;
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}
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// Add event listener for keyboard input
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document.addEventListener('keydown', function(event) {
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const key = event.key;
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// Handle digit keys and operators
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if ((key >= '0' && key <= '9') || key === '.' || key === '+' || key === '-' || key === '*' || key === '/' || key === '%' || key === '^') {
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appendToDisplay(key);
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document.addEventListener('keydown', function (e) {
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const validKeys = [
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'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
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'.', '/', '*', '-', '+', '=', 'Enter', 'Backspace', 'c',
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'(', ')', '%', '^'
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];
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if (validKeys.includes(e.key)) {
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if (e.key === 'Enter' || e.key === '=') {
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calculate();
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} else if (e.key === 'Backspace') {
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deleteLast();
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} else if (e.key === 'c' || e.key === 'c') {
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clearDisplay();
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} else {
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appendToDisplay(e.key);
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}
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// Handle special characters and functions
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else if (key === '(') {
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appendToDisplay('(');
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} else if (key === ')') {
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appendToDisplay(')');
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} else if (key === 'Enter') {
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calculateResult();
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} else if (key === 'Backspace') {
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backspace();
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}
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});
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</script>
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// Function for handling Backspace
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function backspace() {
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let display = document.getElementById('display').value;
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document.getElementById('display').value = display.slice(0, -1);
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}
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</script>
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</body>
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</html>
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