What are some common mistakes in list filtering?

What are some common mistakes people make when filtering lists?

Some common mistakes include not considering data types, overlooking null values, and using incorrect logical operators.

Can you give me an example of filtering with null values?

Sure! If you're filtering a list of users and some have no email, you might miss those by not including a check for null.

What about using logical operators incorrectly?

Using 'AND' instead of 'OR' can lead to missing results. For instance, filtering for items that meet both criteria when you need either.

How can I avoid these mistakes?

You can avoid these mistakes by thoroughly testing your filters, reviewing your logic, and ensuring you understand your data.