12 Mistakes to Avoid When Writing JavaScript in 2024

JavaScript continues to evolve, and with it, the best practices and pitfalls to watch out for. As we enter 2024, it’s more important than ever to write clean, efficient, and maintainable code. However, even experienced developers can fall into common traps that lead to bugs, performance issues, or difficult-to-maintain code. In this article, we’ll highlight 12 mistakes to avoid when writing JavaScript in 2024, ensuring your code is as robust and efficient as possible.

1. Neglecting let and const

One of the most common mistakes in JavaScript is using var instead of let and const. Since the introduction of ES6, let and const have become the standard for variable declaration due to their block scope and immutability features, respectively.

Why It’s a Mistake

Using var can lead to scope-related bugs because it is function-scoped, not block-scoped. let and const help prevent these issues and make your code more predictable.

Best Practice

• Use let for variables that may change.
• Use const for variables that should not change.
• Avoid var altogether to prevent scope issues.

2. Ignoring the this Context in Arrow…