I dot understand this question I am stuck

JavaScript
1

Tell us what’s happening:

Your code so far


function getLength(str) {
  "use strict";

  // change code below this line
  const length = 0; // 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 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/604.5.6 (KHTML, like Gecko) Version/11.0.3 Safari/604.5.6.

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

2

What do you not understand about it?

What have you have tried?

3

I understand how we can destructure the object and arrays but confused how we can destructure object, if we are using the function.

4

var voxel = {x: 3.6, y: 7.4, z: 6.54 };
var x = voxel.x; // x = 3.6
var y = voxel.y; // y = 7.4
var z = voxel.z; // z = 6.54
Here’s the same assignment statement with ES6 destructuring syntax:

const { x, y, z } = voxel; // x = 3.6, y = 7.4, z = 6.54
If instead you want to store the values of voxel.x into a, voxel.y into b, and voxel.z into c, you have that freedom as well.

const { x : a, y : b, z : c } = voxel // a = 3.6, b = 7.4, c = 6.54

Till here I understand.

6

Strings have prototype methods built in called length.

You are simply assigning length into a new variable called len.

const { x : a, y : b, z : c } = voxel // a = 3.6, b = 7.4, c = 6.54

Use this as an example.

7 
function getLength(str) {
  "use strict";

  // change code below this line
  const length = 0; // change this
  // change code above this line

  const len= str.length; // you must assign length to len in line

}

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

don’t understand.

8

What about this?
var str = {length:...}

Then what should go in here?

 const length = 0; // change this

Hint: Use deconstruction using const here.

10

Thank you so much I will try to do that.

11

Can I give any length?

12

No, I just gave my above reply as an example.

Can you try now?

13

I got the solution but I don’t understand the concept it’s very confusing.