JavaScript Best Practices

Writing Efficient and Maintainable Code

Hey there, JavaScript enthusiasts! Get ready to dive into the world of efficient and maintainable code with these best practices. We’ll cover everything from variable naming to DOM manipulation. So, why do these best practices matter? Let me tell you straight up: They make your code perform better and ensure it ages like fine wine. No more spaghetti code nightmares! So, let’s get started on our journey towards JavaScript coding excellence. Brace yourselves, my friends!

1. Use Descriptive Variable and Function Names

Choose meaningful names for variables and functions that reflect their purpose. This makes your code more readable and understandable for you and other developers who might work on the project.

Bad ❌

let x = 5; // What does 'x' represent?

function myFunction(a, b) { // What does 'myFunction' do?
   // …
}

Good ✅

let itemCount = 5; // Clearly indicates the purpose of the variable

function calculateTotal(price, quantity) { // Describes the function's purpose
    // ...
}

2. Follow a Consistent Indentation and Formatting Style