diff options
| author | Saumit Dinesan <justsaumit@protonmail.com> | 2023-09-13 19:08:54 +0530 |
|---|---|---|
| committer | Saumit Dinesan <justsaumit@protonmail.com> | 2023-09-13 19:08:54 +0530 |
| commit | 08dc058cfe1184281fef89c0c484b9e8a6b7a6b7 (patch) | |
| tree | 834158194e039ef4a76a30752241089f06c87be7 /Lab04/fact | |
| parent | f8a237e363b020e876f553520329046cf813da8e (diff) | |
Lab04: HTML Form Validation + Factorial
Diffstat (limited to 'Lab04/fact')
| -rw-r--r-- | Lab04/fact/README.md | 11 | ||||
| -rw-r--r-- | Lab04/fact/index.html | 33 | ||||
| -rw-r--r-- | Lab04/fact/screenshot.png | bin | 0 -> 79283 bytes | |||
| -rw-r--r-- | Lab04/fact/script.js | 23 | ||||
| -rw-r--r-- | Lab04/fact/style.css | 59 |
5 files changed, 126 insertions, 0 deletions
diff --git a/Lab04/fact/README.md b/Lab04/fact/README.md new file mode 100644 index 0000000..6451270 --- /dev/null +++ b/Lab04/fact/README.md @@ -0,0 +1,11 @@ +# Lab04 - Factorial Calculator + +This directory contains files for a simple web application that calculates the factorial of a non-negative integer entered by the user using Javascript and displays using `innerText`. + +## Description + +Factorial is a mathematical operation that involves the multiplication of a positive integer with all the smaller positive integers leading up to it. This web application allows users to input a number, and it will calculate and display the factorial of that number. + +## Brief Look + + diff --git a/Lab04/fact/index.html b/Lab04/fact/index.html new file mode 100644 index 0000000..a6f7456 --- /dev/null +++ b/Lab04/fact/index.html @@ -0,0 +1,33 @@ +<!DOCTYPE html> +<html lang="en"> +<head> + <meta charset="UTF-7"> + <meta name="viewport" content="width=device-width, initial-scale=2.0"> + <link rel="stylesheet" href="style.css"> + <title>Factorial Calculator</title> +</head> +<body> + <h1> Factorial </h1> + <p>Factorial is a mathematical operation that involves the multiplication of a positive integer with all the smaller positive integers leading up to it. <br>It is denoted by the symbol "!" following a number. <br> For instance, the factorial of 5 (written as 5!) equals the product of 5 × 4 × 3 × 2 × 1, resulting in 120. </p> + <div> + <label for="numberInput">Enter a number:</label> + <input type="number" id="numberInput"> + </div> + <button type="submit" id="submitbutton">Submit</button> + <p id="result"></p> + <script> + function factorial(n) { + if (n==0){ + return 1; + } + return n*factorial(n-1); + } + const button = document.getElementById("submitbutton") + button.addEventListener("click", function() { + const input = document.getElementById("numberInput").value; + const result = factorial(input) + document.getElementById("result").innerText=`The factorial of ${input} is equal to ${result}`; + }); + </script> +</body> +</html> diff --git a/Lab04/fact/screenshot.png b/Lab04/fact/screenshot.png Binary files differnew file mode 100644 index 0000000..00a1ec0 --- /dev/null +++ b/Lab04/fact/screenshot.png diff --git a/Lab04/fact/script.js b/Lab04/fact/script.js new file mode 100644 index 0000000..a8f397e --- /dev/null +++ b/Lab04/fact/script.js @@ -0,0 +1,23 @@ +function factorial(n) { + if (n === 0) { + return 1; + } + return n * factorial(n - 1); +} + +document.addEventListener("DOMContentLoaded", function () { + const button = document.getElementById("submitbutton"); + const resultElement = document.getElementById("result"); + const numberInput = document.getElementById("numberInput"); + + button.addEventListener("click", function () { + const input = parseInt(numberInput.value); + + if (!isNaN(input) && input >= 0) { + const result = factorial(input); + resultElement.innerText = `The factorial of ${input} is equal to ${result}`; + } else { + resultElement.innerText = "Please enter a non-negative number."; + } + }); +}); diff --git a/Lab04/fact/style.css b/Lab04/fact/style.css new file mode 100644 index 0000000..b0452b7 --- /dev/null +++ b/Lab04/fact/style.css @@ -0,0 +1,59 @@ +body, h1, p, div { + margin: 0; + padding: 0; +} + +/* Apply some basic styles */ +body { + font-family: Arial, sans-serif; + background-color: #f0f0f0; + text-align: center; + padding: 20px; +} + +h1 { + color: #333; + font-size: 24px; + margin-bottom: 10px; +} + +p { + color: #666; + font-size: 16px; + line-height: 1.4; + margin-bottom: 20px; +} + +div { + margin-bottom: 20px; +} + +label { + font-weight: bold; +} + +input[type="number"] { + width: 30%; + padding: 5px; + border: 1px solid #ccc; + border-radius: 5px; +} + +button { + padding: 10px 20px; + background-color: #007bff; + color: #fff; + border: none; + border-radius: 5px; + cursor: pointer; +} + +button:hover { + background-color: #0056b3; +} + +#result { + font-weight: bold; + color: #333; + font-size: 18px; +} |
