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How to Concatenate or Merge Objects With the Spread Operator in JavaScript

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OHIOLee answered on March 30, 2020 Popularity 8/10 Helpfulness 3/10

answer How to Concatenate or Merge Objects With the Spread Operator in JavaScript

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How to Concatenate or Merge Objects With the Spread Operator in JavaScript

Comment

let userName = { name: "John Doe" };
let userSex = { sex: "Male" };

let user = { ...userName, ...userSex };

console.log(user); // { name: "John Doe", sex: "Male" }

// Note: In a situation where one key has another property,
// the last property overrides the first instance:

let userName = { name: "John Doe" };
let userSex = { sex: "Female", name: "Jane Doe" };

let user = { ...userName, ...userSex }; // { name: "Jane Doe", sex: "Female" }

Popularity 8/10 Helpfulness 3/10 Language javascript

Source: www.freecodecamp.org

Tags: javascript merge spread

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Contributed on Aug 22 2022

OHIOLee

0 Answers Avg Quality 2/10

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spread operator merge objects

Comments(2)

 let a = {
    a: 1,
    b: true
}

let b = {
	y: 093,
	z: 'This is an object'
}

const c = {...a, ...b}

Popularity 9/10 Helpfulness 5/10 Language javascript

Source: www.javascripttutorial.net

Tags: javascript j

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Contributed on Sep 29 2020

Encouraging Eland

0 Answers Avg Quality 2/10

javascript merge two array with spread operator

Comment

const a = ['to', 'code'];
const b = ['learning', ...a, 'is', 'fun']; 
console.log(b); //> ['learning', 'to', 'code', 'is', 'fun']

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Mar 30 2020

redeluni

0 Answers Avg Quality 2/10

merge two objects without spread operator

Comment

const person = {
    name: "John Doe", 
    age: 24,
    location: "U.S.A"
}
const job = {
    title: "Full stack developer",
    location: "Remote"
}

const employee = Object.assign(person, job);

console.log(employee);

Popularity 6/10 Helpfulness 2/10 Language typescript

Source: stackabuse.com

Tags: merge spread typescript

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Contributed on Jul 08 2022

Tk Azeem

0 Answers Avg Quality 2/10

merge two objects without spread operator

Comment

const person = {
    name: "John Doe",
    location: "Remote"
}
const job = {
    title: "Full stack developer",
    location: "Office"
}
const employee = {...person, ...job}

console.log(employee);

Popularity 6/10 Helpfulness 2/10 Language typescript

Source: stackabuse.com

Tags: merge spread typescript

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Contributed on Jul 08 2022

Tk Azeem

0 Answers Avg Quality 2/10

How to Concatenate or Merge Arrays With the Spread Operator in JavaScript

Comment

let femaleNames = ["Daniel", "Peter", "Joe"];
let maleNames = ["Sandra", "Lucy", "Jane"];

let allNames = [...femaleNames, ...maleNames];

console.log(allNames); // ["Daniel","Peter","Joe","Sandra","Lucy","Jane"]

// It's also important to know that we can use the same approach for as many arrays
// as we have. We can also add individual elements within the array:

let femaleNames = ["Daniel", "Peter", "Joe"];
let maleNames = ["Sandra", "Lucy", "Jane"];
let otherNames = ["Bill", "Jill"];

let moreNames = [...otherNames, ...femaleNames, ...maleNames];
let names = [...moreNames, "Ben", "Fred"];


// This saves us the stress of using a complicated syntax like the concat() method

Popularity 8/10 Helpfulness 2/10 Language javascript

Source: www.freecodecamp.org

Tags: arrays javascript java

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Contributed on Aug 22 2022

OHIOLee

0 Answers Avg Quality 2/10

merge two objects without spread operator

Comment

//output
{
    name: "John Doe", 
    age: 24,
    location: "Remote",
    title: "Full stack developer"
}

Popularity 5/10 Helpfulness 1/10 Language typescript

Source: stackabuse.com

Tags: merge spread typescript

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Contributed on Jul 08 2022

Tk Azeem

0 Answers Avg Quality 2/10

merge two objects without spread operator

Comment

{
  name: 'John Doe',
  location: 'Office',
  title: 'Full stack developer'
}

Popularity 5/10 Helpfulness 1/10 Language typescript

Source: stackabuse.com

Tags: merge spread typescript

Link to this answer
Share Copy Link

Contributed on Jul 08 2022

Tk Azeem

0 Answers Avg Quality 2/10

How to Concatenate or Merge Objects With the Spread Operator in JavaScript

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How to Concatenate or Merge Objects With the Spread Operator in JavaScript

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