<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="styles.css">
</head>
<body>
<h1>Hello, World!</h1>
<script src="script.js"></script>
</body>
</html>HTML: Basic Template Structure
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Globalization in React (2025 Trends & Best Practices)
- 🌐 Reach global markets (especially MENA, LATAM, Asia-Pacific)
- 📈 Improve SEO for localized queries
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Use react-i18next to add multilingual support:
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Comparison and Logical Operators
==performs type coercion.===ensures both value and type match.
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Arithmetic Operators
let product = 10 * 5; // 50- Divides the first number by the second.
- Example:
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Non-Primitive Data Types (Objects, Arrays, and Functions)
function greet(name) {
return `Hello, ${name}!`;
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console.log(greet("Alice")); // "Hello, Alice!"- Function Expression:
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Primitive Data Types
let user;
console.log(user); // undefinedThe null value represents an intentional absence of any object value.
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Variables and Constants
function test() {
var y = 20;
console.log(y); // 20
}
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console.log(name);
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Hello World and Comments
- In a browser:
- Open the console (
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Using Node.js to Run JavaScript
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Running JavaScript in the Browser Console
- Go to Safari > Preferences > Advanced and enable the Show Develop menu in menu bar option.
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Cmd+Option+C. - Click on the Console tab.
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Installing a Code Editor (e.g., VS Code)
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- Go to
File > Preferences > Settingsand search for "Auto Save." - Set it to
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JavaScript in Modern Web Development
JavaScript is the engine behind the dynamic behavior of modern websites. It works alongside HTML (structure) and CSS (style) to create a complete web experience.
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History and Evolution
- JavaScript powers not only browsers but also servers (Node.js), mobile apps, and even IoT devices.
- Widely used frameworks like React, Angular, and Vue have further cemented its role in modern development.
- Interpreted: Runs directly in the browser without requiring compilation.
- Versatile: Works for front-end, back-end, and hybrid development.
- Event-Driven: Handles user interactions dynamically.
- Cross-Platform: Runs on any device with a browser.
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