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Hrishikesh-DalalHrishikesh-Dalal
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Merge pull request #131 from SuvanshTembe/feature-tip-calculator
Added Feature -Tip calculator Category: Productivity Difficulty: Easy(fixes #125)
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‎data/projects.json‎

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"difficulty": "easy"
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},
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{
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"title": "Tip Calculator",
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"slug": "Tip Calculator",
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"description": "Calculate tips and divide bills accurately in seconds",
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"category": "Productivity",
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"categoryKey": "productivity",
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"difficulty": "easy"
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},
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{
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"title": "Hangman Game",
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"slug": "hangman",
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"description": "A two player word guessing game where one enters a secret word and the other tries to guess it.",
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"category": "Small Games",
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"categoryKey": "games",
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"difficulty": "medium"
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}
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]

‎projects/Tip Calculator/index.html‎

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>Tip Calculator</title>
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<link rel="stylesheet" href="styles.css" />
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</head>
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<body>
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<button id="themeToggle" class="theme-toggle" aria-label="Toggle theme">
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<svg
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class="sun-icon"
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width="20"
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height="20"
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viewBox="0 0 24 24"
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fill="none"
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stroke="currentColor"
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stroke-width="2"
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>
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<circle cx="12" cy="12" r="5" />
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<line x1="12" y1="1" x2="12" y2="3" />
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<line x1="12" y1="21" x2="12" y2="23" />
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<line x1="4.22" y1="4.22" x2="5.64" y2="5.64" />
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<line x1="18.36" y1="18.36" x2="19.78" y2="19.78" />
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<line x1="1" y1="12" x2="3" y2="12" />
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<line x1="21" y1="12" x2="23" y2="12" />
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<line x1="4.22" y1="19.78" x2="5.64" y2="18.36" />
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<line x1="18.36" y1="5.64" x2="19.78" y2="4.22" />
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</svg>
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<svg
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class="moon-icon"
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width="20"
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height="20"
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viewBox="0 0 24 24"
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fill="none"
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stroke="currentColor"
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stroke-width="2"
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>
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<path d="M21 12.79A9 9 0 1 1 11.21 3 7 7 0 0 0 21 12.79z" />
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</svg>
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</button>
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<h1>Tip Calculator</h1>
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<div class="container">
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<label for="bill">Enter total amount in ₹:</label>
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<input
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id="bill"
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class="bill"
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type="number"
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placeholder="e.g. 50"
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min="0"
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/>
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<h3>Select tip percentage:</h3>
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<div class="tip-buttons">
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<button type="button" class="tip-btn" data-tip="10">10%</button>
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<button type="button" class="tip-btn" data-tip="15">15%</button>
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<button type="button" class="tip-btn" data-tip="20">20%</button>
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</div>
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<label for="custom-tip">Or enter custom tip %:</label>
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<input id="custom-tip" type="number" placeholder="e.g. 18" min="0" />
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<label for="split">Number of people to split bill:</label>
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<input
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id="split"
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class="split"
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type="number"
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placeholder="e.g. 2"
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min="1"
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value="1"
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/>
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<div class="results">
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<h3>Tip Amount: <span id="tip-amount">Rs0.00</span></h3>
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<h3>Total Bill: <span id="total-bill">Rs0.00</span></h3>
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<h3>Total per Person: <span id="per-person">Rs0.00</span></h3>
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</div>
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</div>
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<script src="main.js"></script>
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</body>
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</html>

‎projects/Tip Calculator/main.js‎

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const billInput = document.querySelector(".bill");
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const splitInput = document.querySelector(".split");
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const tipButtons = document.querySelectorAll(".tip-btn");
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const customTipInput = document.getElementById("custom-tip");
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const tipAmountDisplay = document.getElementById("tip-amount");
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const totalBillDisplay = document.getElementById("total-bill");
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const perPersonDisplay = document.getElementById("per-person");
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let tipPercentage = 0;
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tipButtons.forEach(btn => {
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btn.addEventListener("click", () => {
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tipPercentage = Number(btn.dataset.tip);
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customTipInput.value = ""; // clear custom tip
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tipButtons.forEach(b => b.classList.remove("active"));
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btn.classList.add("active");
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calculateTotals();
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});
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});
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[billInput, splitInput, customTipInput].forEach(input => {
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input.addEventListener("input", () => calculateTotals());
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});
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function calculateTotals() {
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const bill = parseFloat(billInput.value);
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const people = parseInt(splitInput.value) || 1;
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const customTip = parseFloat(customTipInput.value);
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// Use custom tip if entered
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const tipPercent = customTip > 0 ? customTip : tipPercentage;
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// Prevent calculation for empty bill
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if (isNaN(bill) || bill <= 0) {
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updateDisplay(0, 0, 0);
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return;
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}
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const tipAmount = (bill * tipPercent) / 100;
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const totalBill = bill + tipAmount;
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const perPerson = totalBill / people;
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updateDisplay(tipAmount, totalBill, perPerson);
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}
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function updateDisplay(tip, total, perPerson) {
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tipAmountDisplay.textContent = `Rs${tip.toFixed(2)}`;
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totalBillDisplay.textContent = `Rs${total.toFixed(2)}`;
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perPersonDisplay.textContent = `Rs${perPerson.toFixed(2)}`;
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}
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const themeToggle = document.getElementById("themeToggle");
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const body = document.body;
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const currentTheme = localStorage.getItem("theme") || "light";
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if (currentTheme === "dark") {
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body.classList.add("dark-mode");
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}
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themeToggle.addEventListener("click", () => {
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body.classList.toggle("dark-mode");
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const theme = body.classList.contains("dark-mode") ? "dark" : "light";
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localStorage.setItem("theme", theme);
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});

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