Just [-1] instead of [.lenght -1]?

Tell us what’s happening:
In order to get the last letter of a string wouldnt be just enough to use [-1]; instead of [some.length -1]?
in python it works with [-1]

Your code so far

// Example
var firstName = "Ada";
var lastLetterOfFirstName = firstName[firstName.length - 1];

// Setup
var lastName = "Lovelace";

// Only change code below this line.
var lastLetterOfLastName = lastName[-1];

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Link to the challenge:

You need to use the first method in JavaScript.

This will grab a letter at index -1, which is probably undefined.

This is not Python. However, in JavaScript, you could use a negative index with slice.

var str = 'ABCDEF';
var lastLetterOfStr = str.slice(-1); // "F"