Here's a tip don't use for of, was literally staring at my screen why it won't take for of...
use by index

so, don't do:
let m of moves
=>
var m = 0 ; m < moves.length; m++

You don't have to do TDD. All you have to click is "Run Suite" and there will be testcases already created for you. TDD is an optional box if you want to have your own TDD cases - "Run Examples" button will run the TDD.

don't wanna do tdd

Thanx a lot :-)

thanks! I'll think about it some more. :D

If you are a beginner in JS, I recommand you try this series:
https://www.codewars.com/collections/training-js-series-for-javascript-beginner-myjinxin2015
;-)

In this Kata, you need to find a breakthrough from the JS command to the output of the screen, then sniffing the string.
My words are too hard to understand? But I can't tell you how to do it. Because that would make a lot of people lose the fun of thinking ;-)

Actually i'm a beginner in JS, so i can't visualize what u've said.

Please think about where these characters come from and what they have been through ;-)

How to approach this problem anyone please suggest......

Think about where these characters come from and what they have been through ;-)

How do I take no params or inputs and get its length?

think I'm missing some tools here..
anyone care to elaborate on the keyword I need or thought process to approach this problem?

Thank you!

@MariusAFT,

The return value is supposed to be a string -> "None"

>>> type(None)    # not this None
<class 'NoneType'>
>>> type('None')  # this "None"
<class 'str'>