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Accessing Properties in JavaScript Objects using Destructuring

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Homeless Hedgehog answered on March 18, 2020 Popularity 9/10 Helpfulness 1/10

answer Accessing Properties in JavaScript Objects using Destructuring

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Accessing Properties in JavaScript Objects using Destructuring

Comment

const myObject = {title: 'My Title', name: 'My Name'};
const {title, name} = myObject;

console.log(name); // "My Name"
console.log(title); // "My Title"

Popularity 9/10 Helpfulness 1/10 Language javascript

Source: blog.debugeverything.com

Tags: destructuring javascript javascript-objects properties using

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Contributed on Sep 29 2022

Homeless Hedgehog

0 Answers Avg Quality 2/10

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javascript object destructuring

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//simple example with object------------------------------
let obj = {name: 'Max', age: 22, address: 'Delhi'};
const {name, age} = obj;

console.log(name);
//expected output: "Max"

console.log(age);
//expected output: 22

console.log(address);
//expected output: Uncaught ReferenceError: address is not defined

// simple example with array-------------------------------
let a, b, rest;
[a, b] = [10, 20];

console.log(a);
// expected output: 10

console.log(b);
// expected output: 20

[a, b, ...rest] = [10, 20, 30, 40, 50];

console.log(rest);
// expected output: Array [30,40,50]

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: developer.mozilla.org

Tags: javascript j

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Contributed on May 16 2020

v!v

0 Answers Avg Quality 2/10

object destructuring javascript

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// destructuring object & nested object & combine object into single object
let user = {
  name: 'Mike',
  friend: ["John", "Paul", "Jimmy"],
  location: {
    region:"England",
    country:"United Kingdom"
  },
  aboutMe: {
    status: "Single",
    pet: "Dog",
  }
}

const { name, friend, location, aboutMe: {status , pet} } = user;

console.log(name); // output: "Mike"
console.log(friend);  // output: [ 'John', 'Paul', 'Jimmy' ]
console.log(location); // output: { region: 'England', country: 'United Kingdom' }
console.log(status); // output: "Single"
console.log(pet); // output: "Dog"

//Combining Obj
const newUser = {
  ...user,
  car: {
    make: "Buick",
    year: 2012,
  }
}

console.log(newUser)
// output user obj + car object into one
// {
//   name: 'Mike',
//   friend: [ 'John', 'Paul', 'Jimmy' ],
//   location: { region: 'England', country: 'United Kingdom' },
//   aboutMe: { status: 'Single', pet: 'Dog' },
//   car: { make: 'Buick', year: 2012 }
// }

//Bonus destructuring from object of array
const {friend: [a, ...b]} = user
console.log(a) // output: "John"
console.log(b) // output: ["Paul", "Jimmy"]

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Sep 07 2021

God Of Coding

0 Answers Avg Quality 2/10

object destructuring

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const book = {
    title: 'Ego is the Enemy',
    author: 'Ryan Holiday',
    publisher: {
        name: 'Penguin',
        type: 'private'
    }
};

const {title: bookName =  'Ego', author, name: {publisher: { name }} = book, type: {publisher: { type }} = book } = book;

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Mar 18 2020

Scary Snail

0 Answers Avg Quality 2/10

object destructuring into this

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const demo = { nextUrl: 'nextUrl', posts: 'posts' };

const target = {}; // replace target with this

({ nextUrl: target.nextUrl, posts: target.communityPosts } = demo);

console.log(target);

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on May 09 2020

Scriper

0 Answers Avg Quality 2/10

Object destructuring

Comment

Object Destructuring =>
//
   The destructuring assignment syntax is a JavaScript expression that makes it
possible to unpack values from arrays,
or properties from objects, into distinct variables.
//
example:
const user = {
    id: 42,
    is_verified: true
};

const {id, is_verified} = user;

console.log(id); // 42
console.log(is_verified); // true

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: developer.mozilla.org

Tags: javascript j

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Contributed on Sep 20 2020

kepl3r

0 Answers Avg Quality 2/10

Object Destructuring

Comment

const obj = { a: 1, b: 2 };
const { a, b } = obj;
// This creates two variables, a and b,
// which are equivalent to
// const a = obj.a;
// const b = obj.b;

const array = [1, 2, 3, 4, 5];
const [ zerothEle, firstEle ] = array;
// This creates zerothEle and firstEle, both of which point
// to the elements in the 0th and 1st indices of the array

Popularity 7/10 Helpfulness 2/10 Language javascript

Source: www.theodinproject.com

Tags: javascript object-destructuring object-de

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Contributed on Nov 27 2023

Noah Mbutcho

0 Answers Avg Quality 2/10

javascript default parameters object destructuring

Comment

You can use "defaults" in destructuring as well:

(function test({a = "foo", b = "bar"} = {}) {
  console.log(a + " " + b);
})();

This is not restricted to function parameters, 
but works in every destructuring expression.

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: stackoverflow.com

Tags: default-parameters default-parameter

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Contributed on Aug 21 2021

Unusual Unicorn

0 Answers Avg Quality 2/10

javascript object destructuring example

Comment

const x = [1, 2, 3, 4, 5];
const [y, z] = x;
console.log(y); // 1
console.log(z); // 2

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: developer.mozilla.org

Tags: javascript j

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Contributed on Dec 20 2022

Adam, the developer

0 Answers Avg Quality 2/10

object destructuring

Comment

let a, b, rest;
[a, b] = [10, 20];

console.log(a);
// expected output: 10

console.log(b);
// expected output: 20

[a, b, ...rest] = [10, 20, 30, 40, 50];

console.log(rest);
// expected output: Array [30,40,50]

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: developer.mozilla.org

Tags: javascript j

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Contributed on Apr 10 2020

Fylls

0 Answers Avg Quality 2/10

object destructuring example

Comment

const hero = {
  name: 'Batman',
  realName: 'Bruce Wayne',
  address: {
    city: 'Gotham'
  }
};

// Object destructuring:
const { realName, address: { city } } = hero;
city; // => 'Gotham'

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: dmitripavlutin.com

Tags: javascript j

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Contributed on Feb 18 2021

Nutty Narwhal

0 Answers Avg Quality 2/10

Accessing Properties in JavaScript Objects using Destructuring

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