Here’s a step-by-step guide to implementing a drag-and-drop file upload feature using Vanilla JavaScript. Step 1 : Create the HTML structure Start by setting up the basic structure for the file upload area. <!DOCTYPE html> <html lang=”en”> <head> <meta charset=”UTF-8″> <meta name=”viewport” content=”width=device-width, initial-scale=1.0″> <title>Drag and Drop File Upload</title> <link rel=”stylesheet” href=”styles.css”> </head> <body> <div …
Step 1: Create the HTML Structure First, set up the basic structure of the modal in your HTML file <!DOCTYPE html> <html lang=”en”> <head> <meta charset=”UTF-8″> <meta name=”viewport” content=”width=device-width, initial-scale=1.0″> <title>Custom Modal Popup</title> <link rel=”stylesheet” href=”styles.css”> </head> <body> <!– Button to Open Modal –> <button id=”openModal”>Open Modal</button> <!– Modal Structure –> <div id=”customModal” class=”modal”> <div …
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Optimizing DOM Manipulation in JavaScript for Better Performance 1. Understanding the DOM and Its Performance Impact What is the DOM? The Document Object Model (DOM) is a representation of the page structure in JavaScript. JavaScript can manipulate the DOM to dynamically update content, styles, and structure. Why DOM Manipulation Can Be Slow? Frequent changes to …
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