Skip to content
All lessons

Tech Insights

If you want the number of items in a QuerySet and are also retrieving model instances from it (for example, by iterating ove...

If you want the number of items in a QuerySet and are also retrieving model instances from it (for example, by iterating over it), it’s probably more efficient to use len(queryset) which won’t cause an extra database query like count() would.

Shared by Lais Varejão

  • Django

Book a call

Lessons like this one
shape how we build.

Tell us what you’re building. In one call, we’ll show you how our team would approach it.

Tell us what you’re building, and we’ll show you how we’d approach it.

Still prefer the good old email? Contact us