Got it, thanks!

Yes, I see now. Thanks for the idea!

Sorry, I didn't get it. Can you give an example, how you can solve the problem without the loop?

Just my own preference. Do you have a better suggestion? :)

I'm not sure but it seems the task has changed since the time I solved it :)

You're right, the length is ignored. I don't remember how I missed it, I solved this task a year ago. Apparently, the solution worked back then :)

Which exactly part is not clear?
Let's say we have a name "John". Then

_ = 'John'
_.toLowerCase() // => 'john'
[..._.toLowerCase()] // basically casts the string to a list => ['j', 'o', 'h', 'n']
// Then `reduce` converts the letters to numbers and sums them.

Seems to be fine now. Thank you!

Something wrong with random tests: I'm receiving this error:

Test Passed
Test Passed
Test Passed
Test Passed
Test Passed
TypeError: Object function Array() { [native code] } has no method 'fill'
           

This reason must be in the node version: I have 'Node v0.10.33/Babel' specified for this kata.

You can assume that parameters numbers will be positive integers and that the start of the range will be less than the end of the range.

Though in random tests section start of the range can be more than the end.

@donaldsebleung So if the solution using sort is illegal, you should have mentioned this in details. Otherwise it would be correct to fix the kata so that it accepted any kind of solutions.