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50 lines
1.3 KiB
JavaScript
50 lines
1.3 KiB
JavaScript
// Sample JavaScript script with 7 functions
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// 1. A simple greeting function
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function greet(name) {
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return `Hello, ${name}!`;
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}
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// 2. A function to calculate the area of a circle
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function calculateCircleArea(radius) {
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return Math.PI * radius * radius;
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}
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// 3. A function to check if a number is prime
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function isPrime(number) {
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if (number <= 1) return false;
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for (let i = 2; i <= Math.sqrt(number); i++) {
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if (number % i === 0) return false;
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}
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return true;
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}
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// 4. A function to reverse a string
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function reverseString(str) {
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return str.split('').reverse().join('');
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}
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// 5. A function to generate a random number within a range
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function getRandomNumber(min, max) {
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return Math.floor(Math.random() * (max - min + 1)) + min;
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}
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// 6. A function to filter out even numbers from an array
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function filterEvenNumbers(numbers) {
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return numbers.filter(num => num % 2 !== 0);
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}
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// 7. A function to calculate the factorial of a number
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function factorial(n) {
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if (n === 0 || n === 1) return 1;
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return n * factorial(n - 1);
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}
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// Example usage
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console.log(greet("Alice"));
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console.log(calculateCircleArea(5));
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console.log(isPrime(17));
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console.log(reverseString("JavaScript"));
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console.log(getRandomNumber(1, 100));
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console.log(filterEvenNumbers([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]));
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console.log(factorial(5));
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