Function naming convention

[shadybassily]

in Functions section, exactly inside naming conventions, you recommend to prefix a function with check... if the function returns a true/false, yet in one of the examples, you named a function isPrime that returns true if a num is prime.

[prakhar-pal]

I don't believe it matters that much as long as function names are meaningful.

This is a convention but conventions can change by project to project.