Reverse a String Basic Algo

JavaScript
1

Tell us what’s happening:
Can’t understand where I’m going wrong.
Your code so far


function reverseString(str) {
  
  let h = '';
  for(let i = 0; i < str.length; i++){
    h = h + str[length - 1 -i];
  }
 
  return h;
}

reverseString("hello");

Your browser information:

User Agent is: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.79 Safari/537.36.

Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/basic-algorithm-scripting/reverse-a-string

2

length is not a defined variable anywhere in your code.

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