DEV Community

What's the Spread Operator in Javascript and How to Use it

Gaël Thomas on October 18, 2020

In this short tutorial, you will learn Spread Operators in JavaScript and how to use them. ES6 introduced new features in JavaScript. One of the f...

Read full post

Médéric Burlet • Oct 19 '20 • Edited

I think you could have added an example on changing properties when copying an object:


const user = {
  firstName: "John",
  lastName: "D",
  age: 25,
};

const newUser = {...user, firstName: "Jane"}

console.log(newUser);
// Output: {
//  firstName: "Jane",
//  lastName: "D",
//  age: 25,
//  jobName: "Developer"
//};

Gaël Thomas • Oct 19 '20 • Edited

Hello,
Thank you for the feedback! I added your suggestion to the article.
It's a good example that can help people to understand better how to create or copy objects! (I think you wanted to write about objects, not arrays?)