Loading collection data...
Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
This comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution
Because there could be people in the
people
table that don't have a match on thejob
table.It is exactly the opposite, 0 is falsy, and all other numbers are truthy.
maybe because you're using
a1 + a1
instead ofa1 + a2
Interesting kata.
But... I've had some issues trying to solve it using R. The console won't let me install nor does it acknowledge the series package, even though this package was released with R's version 2.7 and the platform uses 3.4.1. Even though I could load the stringr package, there are some functions I could use and others that I couldn't.
Maybe the kata is meant to be solved using base R, but would appreciate it a lot if someone from Codewars could look into it.
This comment is hidden because it contains spoiler information about the solution
Interesting. Never heard of that function
This is called exception management. If you expect an specific error type, you can do this to avoid your program from crashing all the way. It is especially useful when you have lots of lines of code and this portion is not vital, so the rest can continue executing without it if the expected error happens.
Yeah, I would like to see that!!!
What the...
This comment is hidden because it contains spoiler information about the solution