Nope. That does not work.

A less ambiguous description would be "...but with all words of >= 5 characters, reversed". Made the same mistake

Oh ok I see. So it simply means that I can only walk one block at a time in the given direction. Thank you.

The word "directions" has two possible meanings, "instructions" vs. "which ways you move". You always walk only a single block in a direction here simply assigns the distance walked per direction to one block. Each direction (instruction) is to be followed thus; independantly.

Hi, I have some problem with arrays containing two consecutive directions (the ones containing [...,'n','n',...] for example). The description says: "You always walk only a single block in a direction", so this mean that if I find arrays like in the example above I should return false, it is not valid because I walk two block in a direction. But when I run the code some of the test case fails and they contains consecutive directions, which should be false, instead it says me they should be true. Have I undertood wrong?

Thank you

Not an issue...
Print the input, e.g. in JS console.log it, PHP echo, Python print, Ruby puts, etc.

Hi. I passed all the sample tests but I can't pass 2 of the 9 random example when I try to attempt. The problem is that I can't see what string was given to the function, I can only see the value my function return and the correct value, so I don't know how to fix the function. What can I do?

null has no Length property, check for null first.

Compare it to null?

Java: How's it possible to check if an int array is null? Shouldn't this work only for object arrays?

Oh God...stupid mistake, sorry. Thank you anyway.

Why repeated sentence words are not all modified when .replace is used? Shouldn't .replace do that by definition?