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Destructuring assignment JS

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Ill Iguana answered on October 9, 2020 Popularity 9/10 Helpfulness 1/10

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Destructuring assignment JS

Comment

const [firstElement, secondElement] = list;
// is equivalent to:
// const firstElement = list[0];
// const secondElement = list[1];

// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment

Popularity 9/10 Helpfulness 1/10 Language javascript

Source: developer.mozilla.org

Tags: destructuring javascript

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Contributed on Feb 02 2022

Ill Iguana

0 Answers Avg Quality 2/10

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Destructuring Assignment

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const HIGH_TEMPERATURES = {
  yesterday: 75,
  today: 77,
  tomorrow: 80
};

//ES6 assignment syntax
const {today, tomorrow} = HIGH_TEMPERATURES;

//ES5 assignment syntax
const today = HIGH_TEMPERATURES.today;
const tomorrow = HIGH_TEMPERATURES.tomorrow;

console.log(today); // 77
console.log(tomorrow); // 80
console.log(yesterday); // "ReferenceError: yesterday is not defined" as it should be.

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: www.freecodecamp.org

Tags: destructuring de

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Contributed on Jan 07 2021

OuzOzdemir

0 Answers Avg Quality 2/10

destructuring assignment

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Destructuring assignment is special syntax introduced in ES6, 
for neatly assigning values taken directly from an object.

const user = { name: 'John Doe', age: 34 };

const { name, age } = user;
// name = 'John Doe', age = 34

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: www.freecodecamp.org

Tags: destructuring de

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Contributed on Oct 09 2020

CodeMaster64

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destructuring js

Comment

console.log('Hello World') // Hello World

const {log} = console;
log('Hello World') // Hello World

Popularity 9/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: destructuring de

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Contributed on Aug 19 2022

Anton Grigoriev

0 Answers Avg Quality 2/10

js Destructuring arguments

Comment

const circle = {
  label: 'circleX',
  radius: 2,
};

const circleArea = ({ radius }, [precision = 2]) =>
  (Math.PI * radius * radius).toFixed(precision);

console.log(
  circleArea(circle, [5]) // 12.56637
);

Popularity 9/10 Helpfulness 2/10 Language javascript

Source: jscomplete.com

Tags: arguments argu

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Contributed on Mar 08 2022

barisx

0 Answers Avg Quality 2/10

destructuring an object js

Comment

const user = { id: 42, isVerified: true }

// grabs the property by name in the object, ignores the order
const { isVerified, id } = user;

console.log(isVerified);
// > true

Popularity 9/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: destructuring de

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Contributed on May 10 2022

Paul Pugh

0 Answers Avg Quality 2/10

destructuring javascript

Comment

let a, b, rest;
[a, b] = [10, 20];
console.log(a); // 10
console.log(b); // 20

[a, b, ...rest] = [10, 20, 30, 40, 50];
console.log(a); // 10
console.log(b); // 20
console.log(rest); // [30, 40, 50]

({ a, b } = { a: 10, b: 20 });
console.log(a); // 10
console.log(b); // 20

// Stage 4(finished) proposal
({a, b, ...rest} = {a: 10, b: 20, c: 30, d: 40});
console.log(a); // 10
console.log(b); // 20
console.log(rest); // {c: 30, d: 40}

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: developer.mozilla.org

Tags: destructuring de

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Contributed on Feb 01 2022

Tired Toucan

0 Answers Avg Quality 2/10

Destructuring in ES6

Comment

var a = obj.a
var b = obj.b
var c = obj.c

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: softhunt.net

Tags: destructuring de

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Contributed on Apr 10 2022

Outrageous Ostrich

0 Answers Avg Quality 2/10

js destructuring

Comment

let [person, age] = ['John', 26]
let msg = `${person} is ${age} years old`
console.log(msg)

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: destructuring de

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Contributed on Jan 08 2022

moghaazi

0 Answers Avg Quality 2/10

JavaScript Destructuring - From ES6

Comment

// assigning object attributes to variables
const person = {
    name: 'Sara',
    age: 25,
    gender: 'female'    
}

// destructuring assignment
let { name, age, gender } = person;

console.log(name); // Sara
console.log(age); // 25
console.log(gender); // female

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

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Contributed on May 21 2022

SAMER SAEID

0 Answers Avg Quality 2/10

destructuring in javascript

Comment

-1

/*
Array Destructuring: The following example shows us how to convert all 
the elements of an array to a variable.

Object Destructuring: The following example shows us how to convert all 
the properties of an object into a variable.
*/
//Array Destructuring
const friends = ['Bill', 'Gates'];
const [firstName, secondName] = friends;
console.log(secondName);  //Gates

//Object Destructuring
const person = {name: "Bill Gates", age: 17, phone: "123456789"};
const {name} = person;
console.log(name);  //Bill Gates

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: destructuring de

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Contributed on Jun 20 2022

Rasel Ahmed

0 Answers Avg Quality 2/10

Destructuring assignment JS

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