What are the best practices for function declaration in JavaScript?

What are the best practices for function declaration in JavaScript?

Some best practices include using function expressions over function declarations, keeping functions small, and naming them clearly.

Can you explain why function expressions are preferred?

Function expressions are preferred because they can be anonymous, can be assigned to variables, and help avoid hoisting issues.

What about using arrow functions?

Arrow functions are great for concise syntax and they lexically bind the this value, making them ideal for certain contexts.

Are there any performance considerations?

Generally, the performance difference is negligible, but it's good to be mindful of how functions are used in loops or callbacks.