What is the best way for user to use a filter [closed]

1. What is a filter How does it help a user?
2. Should filters be on left or right?
3. Why are search filters important?

What is a filter How does it help a user?

In computer applications, a filter is a program or section of code that's designed to examine each input or output request for certain qualifying criteria and then process or forward it accordingly.

Should filters be on left or right?

4. Filter bars better showcase filters. By making the filters more prominent on the page and by making them available as the user scrolls a filter bar does a better job of showcasing filters. Presenting filters left to right also makes it very easy for users to quickly see what options are available.

Why are search filters important?

A good set of filters and facets also ensures an improved user experience. By helping users drill down to their needs with ease, it eliminates the need for numerous searches queries just to find something specific. This improves brand loyalty and customer retention.