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javascript default parameters object destructuring

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Unusual Unicorn answered on June 3, 2020 Popularity 10/10 Helpfulness 2/10

answer javascript default parameters object destructuring

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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 javascript object-destructuring

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Contributed on Aug 21 2021

Unusual Unicorn

0 Answers Avg Quality 2/10

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js Destructuring arguments

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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

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 default value

Comment

let a, b;

[a=5, b=7] = [1];
console.log(a); // 1
console.log(b); // 7

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: developer.mozilla.org

Tags: default-value de

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Contributed on Jun 03 2020

Amused Albatross

0 Answers Avg Quality 2/10

js object destructuring with defaults

Comment

// Taken from top stack overflow answer

const { dogName = 'snickers' } = { dogName: undefined }
console.log(dogName) // what will it be? 'snickers'!

const { dogName = 'snickers' } = { dogName: null }
console.log(dogName) // what will it be? null!

const { dogName = 'snickers' } = { dogName: false }
console.log(dogName) // what will it be? false!

const { dogName = 'snickers' } = { dogName: 0 }
console.log(dogName) // what will it be? 0!

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: defaults default

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Contributed on Oct 28 2020

Energetic Eel

0 Answers Avg Quality 2/10

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 de

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Contributed on Sep 29 2022

Homeless Hedgehog

0 Answers Avg Quality 2/10

how to use object destructuring

Comment

// Noob [ not good ]
function getFullName(userObj) {
  const firstName = userObj.firstName;
  const lastName = userObj.lastName;

  return `${firstName} ${lastName}`;
}

// master [ yap little bit ]
function getFullName(userObj) {
  const { firstName, lastName } = userObj;
  return `${firstName} ${lastName}`;
}

// hacker [ i prefer this way ]
function getFullName({ firstName, lastName }) {
  return `${firstName} ${lastName}`;
}
// example func call
getFullName({
	firstName: 'John',
    lastName: 'Duo'
});

Popularity 10/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Feb 11 2022

Easy Earthworm

0 Answers Avg Quality 2/10

JavaScript Destructuring - Before ES6

Comment

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

let name = person.name;
let age = person.age;
let gender = person.gender;

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

Popularity 9/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: destructuring de

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Contributed on May 21 2022

SAMER SAEID

0 Answers Avg Quality 2/10

destructuring assignment in javascript

Comment

// destructuring assignment in javascript
// object destructuring
let person = { 
    name: "Chetan", 
    age: 30, 
    country: "India" 
};
const { name, age } = person;

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

console.log(age);
//expected output: 30

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

// Array destructuring
const num = [1,2,3];
const [one, two, three] = num;
console.log(one); // 1
console.log(two); // 2
console.log(three); // 3

Popularity 10/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: destructuring de

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Contributed on Jan 19 2022

Chetan Nada

0 Answers Avg Quality 2/10

javascript default parameters object destructuring

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