JavaScript10 min read

JavaScript Best Practices

JavaScript best practices. Learn coding standards, performance tips, and common pitfalls to avoid.

Alex Thompson
December 19, 2025
0.0k0

JavaScript Best Practices

Use const by Default

```javascript const name = 'John'; // Use const let counter = 0; // Use let when needed // Never use var ```

Use === Instead of ==

```javascript 5 === '5'; // false (strict) 5 == '5'; // true (coerces) ```

Use Arrow Functions

```javascript const add = (a, b) => a + b; ```

Handle Errors

```javascript try { // Code } catch (error) { // Handle } ```

Key Takeaway

Use const, ===, arrow functions. Handle errors. Write clean, readable code. Follow modern JavaScript standards.

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