ok thanks for the explanations ! have a nice day !

Thank you ! i couldn't find the line 45 ?? how did you know it was in the last function?

I got this error while testing :
/workspace/node/test.js:45
; //set number value to b
^
Does somebody know what this means please ?

i agree with you ! i'm using js as a beginner and can resolve katas but this one uses the string prototype and not function arguments and so beginners like me don't know how to adapt their answer ! thanks to try to understand us !😅