Nested Destructuring on Object Assignments

Question

With ES6 destructuring, is their any way to destructure nested objects on assignment?

Here is a quick code example to show what I mean:

let node = {
  ItemTitle: 'Title',
  ItemId: 5,
  Menu: {Item: [{ItemId: 579}]
}

 // my attempts
  let {
      ItemId: id,
      ItemTitle: title, 
      Menu['Item']: subItems
    } = node

  let {
      ItemId: id,
      ItemTitle: title, 
      Menu.Item: subItems
    } = node

Answer 1

Yes, you can do nested destructuring with ES6. MDN gives you a nice example .

 let node = { ItemTitle: 'Title', ItemId: 5, Menu: { Item: [{ ItemId: 579 }] } } let { Menu: { Item: [{ ItemId }] } } = node console.log(ItemId) // 579 

Answer 2

You can just repeat the same syntax for nested levels as with destructuring the top level:

EDIT based on your comment

I need the object within the array

 let node = { ItemTitle: 'Title', ItemId: 5, Menu: {Item: [{ItemId: 579}]} } let { ItemId: id, // extract `node.ItemId` into a variable called `id` ItemTitle: title, // extract `node.ItemTitle` into a variable called `title` Menu: { Item: [obj] // extract `node.Menu.Item[0]` into a variable called obj } } = node; console.log('id =', id); console.log('title =', title); console.log('obj =', obj); 

Pre-edit: Extracting the id of the object within the nested array.

 let node = { ItemTitle: 'Title', ItemId: 5, Menu: {Item: [{ItemId: 579}]} } let { ItemId: id, // extract `node.ItemId` into a variable called `id` ItemTitle: title, // extract `node.ItemTitle` into a variable called `title` Menu: { Item: [{ ItemId: subItemId // extract `node.Menu.Item[0].ItemId` into a variable called `subItemId` }] } } = node; console.log('id =', id); console.log('title =', title); console.log('subItemId =', subItemId);