"else path not taken" in istanbul code coverage. How to fix?

Question

Angular

I check the coverage of Angularjs code with tests (karma) using Istanbul'a, and throughout the code it gives similar errors for if's

. What is the essence of the error and how can I fix it?

Answer 1

This means that your tests never entered the else branch. Come up with such a test to get there and the error will go away

Answer 2

I can assume that it swears that else in this case is redundant. Try to remove else and move return false below.

Answer 3

proof
Now to find out exactly what this line does.
PS Still is if path not taken
Threat. Threat. And this is not a mistake.