Just a question about Destructuring Assignment

Tell us what’s happening:

ok, it works, but what is the principal difference between this solution and good old:

  const len = str.length;

Your code so far
const {length:len} = str; // change this

function getLength(str) {
  "use strict";

  // change code below this line
  const {length:len} = str; // change this
  // change code above this line
  return len; // you must assign length to len in line



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Link to the challenge:

it’s just a new tool that will come in handy when certain situations warrant it.
There’s a whole topic on this in MDN if you want to read more.

for eg. for loops, while loops are very similar, but each one has its use in different scenarios.

ok, I’ll try to get it later, thanks )