Reverse a String Algorithm

JavaScript
1

Tell us what’s happening:

how is posible that writing these piece of code function reverseString(str) {
return str.split(’’).reverse().join(’’);
} you get the test right taking into account that in any moment you write the variables : “hello”, and “Greetings from Earth”. I mean we shouldn´t store these variable first?.

thank you guys.

Your code so far

function reverseString(str) {
  return str;
}

reverseString("hello");

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Link to the challenge:
https://www.freecodecamp.org/challenges/reverse-a-string