I'm really not sure how to do the second challenge here? How to sort the strings in the array by length.

You need to create a function that sorts by length. In the video he uses the argument (a - b) to sort by numerical order, so just use (a.length - b.length) to sort the strings by length instead of their numerical value.

You have to pass a function to the sort method that tells the sort method how to compare any two values from the array. The method needs to return a positive number if the first element is greater than the second. A negative value if it is less than the second or zero if they are the same.

Use the string property "somestring".length to your advantage when creating this function.

I'm stuck on the same challenge I have this code:

'''saying2= saying2.sort(function(a,b){ a.lenght -b.length; }); ''' and the output is correct i got this: Original array: 'The,quick,brown,fox,jumped,over,the,lazy,dog's,back' Sorted array: 'The,fox,the,over,lazy,back,quick,brown,dog's,jumped'.

but still i got it wrong