What does “to stub” mean in programming?

Question

For example, what does it mean in this quote?

Integrating with an external API is almost a guarantee in any modern web app. To effectively test such i

Answer 1

Stub is a function definition that has correct function name, the correct number of parameters and produces dummy result of the correct type.

It helps to write the test and serves as a kind of scaffolding to make it possible to run the examples even before the function design is complete