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<!DOCTYPE html> <html> <head> <title>Let's Coding Example</title> </head> <body> <div id="html-div"> </div> <script> // 1. Always use `const` by default. // If a variable needs to be reassigned, then use `let`. const MAX_VALUE = 100; // 2. Embrace arrow functions when feasible. // They simplify function declarations. const add = (a, b) => a + b; // 3. Use template literals for string concatenation. // They enhance readability. const name = 'John'; console.log(`Hello, ${name}!`); // 4. Prefer object destructuring for cleaner code. // Extract values from objects more efficiently. const user = { id: 1, name: 'John Doe' }; const { id, name } = user; // 5. Be cautious with the spread operator. // Use it wisely to avoid unintended side effects. const arr1 = [1, 2, 3]; const arr2 = [...arr1]; // 6. Master the use of classes for object-oriented programming. class Person { constructor(name, age) { this.name = name; this.age = age; } greet() { console.log(`Hello, my name is ${this.name} and I'm ${this.age} years old.`); } } // 7. Leverage modules for organized code structures. import { fetchData } from './utils'; // 8. Understand Promises thoroughly for handling asynchronous operations. async function getData() { try { const response = await fetch('https://api.example.com/data'); const data = await response.json(); return data; } catch (error) { console.error('Error:', error); } } </script> </body> </html>
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