What are some common errors when using array methods in JavaScript?

What are some common errors when using array methods in JavaScript?

Some common errors include using the wrong method for the task, forgetting to return values in callbacks, and mutating the original array unintentionally.

Can you give me an example of a mistake with the map method?

Sure! A common mistake is forgetting to return a value in the callback function, which results in an array of undefined values.

What about using filter? What errors should I watch out for?

With filter, a common error is not returning a boolean value in the callback, which can lead to unexpected results.

How can I avoid these errors in my code?

To avoid these errors, always check your callback functions for proper return values and test your methods with sample data.