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feat: add premium calculator with theme toggle, animations, and history #194

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Merged
Hrishikesh-Dalal merged 1 commit into from
Oct 28, 2025
Merged

feat: add premium calculator with theme toggle, animations, and history #194

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102 changes: 65 additions & 37 deletions projects/calculator/index.html
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Original file line number Diff line number Diff line change
@@ -1,48 +1,76 @@
<!doctype html>
<!DOCTYPE html>
<html lang="en">

<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Calculator</title>
<link rel="stylesheet" href="styles.css">
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Premium Calculator with History</title>
<link rel="stylesheet" href="styles.css">
<script defer src="main.js"></script>
</head>

<body>
<div class="calculator">
<div class="display">
<div class="previous-operand" id="previousOperand"></div>
<div class="current-operand" id="currentOperand">0</div>
<div class="theme-toggle-container">
<button class="theme-toggle" aria-label="Toggle Theme" onclick="toggleTheme()">
<svg class="theme-icon" id="themeIcon" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
<circle cx="12" cy="12" r="5"></circle>
<line x1="12" y1="1" x2="12" y2="3"></line>
<line x1="12" y1="21" x2="12" y2="23"></line>
<line x1="4.22" y1="4.22" x2="5.64" y2="5.64"></line>
<line x1="18.36" y1="18.36" x2="19.78" y2="19.78"></line>
<line x1="1" y1="12" x2="3" y2="12"></line>
<line x1="21" y1="12" x2="23" y2="12"></line>
<line x1="4.22" y1="19.78" x2="5.64" y2="18.36"></line>
<line x1="18.36" y1="5.64" x2="19.78" y2="4.22"></line>
</svg>
</button>
</div>

<div class="buttons">
<button class="function" aria-label="All Clear" data-action="clear">AC</button>
<button class="function" aria-label="Backspace" data-action="backspace">⌫</button>
<button class="function" aria-label="Toggle Sign" data-action="toggle-sign">+/-</button>
<button class="operator" aria-label="Divide" data-action="operator" data-operator="÷">÷</button>

<button aria-label="7" data-number="7">7</button>
<button aria-label="8" data-number="8">8</button>
<button aria-label="9" data-number="9">9</button>
<button class="operator" aria-label="Multiply" data-action="operator" data-operator="×">×</button>

<button aria-label="4" data-number="4">4</button>
<button aria-label="5" data-number="5">5</button>
<button aria-label="6" data-number="6">6</button>
<button class="operator" aria-label="Subtract" data-action="operator" data-operator="−">−</button>

<button aria-label="1" data-number="1">1</button>
<button aria-label="2" data-number="2">2</button>
<button aria-label="3" data-number="3">3</button>
<button class="operator" aria-label="Add" data-action="operator" data-operator="+">+</button>

<button class="zero" aria-label="0" data-number="0">0</button>
<button aria-label="Decimal" data-action="decimal">.</button>
<button class="function" aria-label="Percentage" data-action="percentage">%</button>
<button class="equals" aria-label="Equals" data-action="equals">=</button>

<div class="calculator-wrapper" id="calculatorWrapper">
<div class="calculator" id="calculator">
<div class="display">
<button class="clear-history" onclick="clearHistory()" title="Clear History">Clear</button>
<div class="history-container" id="historyContainer">
<!-- History items will be added here -->
</div>
<div class="current-calculation">
<div class="previous-operand" id="previousOperand"></div>
<div class="current-operand" id="currentOperand">0</div>
</div>
</div>
<div class="buttons">
<!-- Row 1: Clear Functions -->
<button class="clear" aria-label="All Clear" data-action="clear">AC</button>
<button class="backspace" aria-label="Backspace" data-action="backspace">⌫</button>
<button class="sign-toggle" aria-label="Toggle Sign" data-action="toggle-sign">+/-</button>
<button class="operator" aria-label="Divide" data-action="operator" data-operator="÷">÷</button>

<!-- Row 2: Numbers 7-9 and Multiply -->
<button aria-label="7" data-number="7">7</button>
<button aria-label="8" data-number="8">8</button>
<button aria-label="9" data-number="9">9</button>
<button class="operator" aria-label="Multiply" data-action="operator" data-operator="×">×</button>

<!-- Row 3: Numbers 4-6 and Subtract -->
<button aria-label="4" data-number="4">4</button>
<button aria-label="5" data-number="5">5</button>
<button aria-label="6" data-number="6">6</button>
<button class="operator" aria-label="Subtract" data-action="operator" data-operator="−">−</button>

<!-- Row 4: Numbers 1-3 and Add -->
<button aria-label="1" data-number="1">1</button>
<button aria-label="2" data-number="2">2</button>
<button aria-label="3" data-number="3">3</button>
<button class="operator" aria-label="Add" data-action="operator" data-operator="+">+</button>

<!-- Row 5: Decimal, Zero, Percentage, Equals -->
<button aria-label="Decimal" data-action="decimal">.</button>
<button aria-label="0" data-number="0">0</button>
<button class="percentage" aria-label="Percentage" data-action="percentage">%</button>
<button class="equals" aria-label="Equals" data-action="equals">=</button>
</div>
</div>
</div>
</div>
<script src="main.js"></script>
</body>

</html>
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