Js split array obj

Question

I have an array formed by a series of objs, I would like to make sure to assign an object to a variable. If the object doesn't exist I would like to assign {} (empty obj).

Can you give me some advice?

let a = [
{
  username: 'james.bond',
  name: 'James Bond',
  email: '[email protected]',
},
{
  username: 'sherlock.holmes',
  name: 'Sherlock Holmes',
  email: '[email protected]',
},
{
  name: 'Shinichi Kudo',
  email: '[email protected]',
  badgeText: '21',
  badgeColor: '#fff',
  badgeBackground: '#25dbd2',
  joined: 'Joined at Jun 31, 2021',
  circle: ['transparent', 'transparent'],
},
{
  name: 'Arthur Conan Doyle',
  email: '[email protected]',
  circle: ['transparent', 'transparent'],
},
  ];
        
   const [b = {}, c = [] ] = a;

console.log(b, c);//b=a[0], c=[a[1],a[2],a[3]]

What? Please add an expected output to your question, it is currently not possible to understand your desired result. — nbokmans
– nbokmans, Commented Jun 9, 2020 at 10:09

Văn Quyết · Accepted Answer · 2020-06-10 02:51:38Z

2

Try this:

const [ b = {}, c = {}, d = {} ] = a;

Or:

const [ b = {}, ...c] = a;

c will be an array contains the rest of a except the first element.

edited Jun 10, 2020 at 2:51

answered Jun 9, 2020 at 10:10

Văn Quyết

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2 Comments

Paul Over a year ago

Thank you for replying I changed the question slightly, can you help me?

Văn Quyết Over a year ago

@Paul this might help: const [ b = {}, ...c] = a

Violet · Accepted Answer · 2020-06-09 10:14:17Z

0

try this:

let a = [{
    username: 'james.bond',
    name: 'James Bond',
    email: '[email protected]',
  },
  {
    username: 'sherlock.holmes',
    name: 'Sherlock Holmes',
    email: '[email protected]',
  }
];

const [b = {}, c = {}, d = {} ] = a;//a.map(x => x)

console.log(b, c, d);

answered Jun 9, 2020 at 10:14

Violet

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1 Comment

Paul Over a year ago

Thank you for replying I changed the question slightly, can you help me?

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