Using Destructing. The restricting is weighing me out. Please help

Tell us what’s happening:

Your code so far


function getLength(str) {
  "use strict";

  // change code below this line
  var len = str.length; 
  const {str: getLength}=len;
  // change this
  // change code above this line

  return len; // you must assign length to len in line

}

console.log(getLength('FreeCodeCamp'));

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.0.1604 Safari/537.36.

Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/es6/use-destructuring-assignment-to-assign-variables-from-objects/

I have gotten it. Thanks!