Merge Properties of Multiple JavaScript Objects | JavaScript Arrays & Objects for Beginners смотреть онлайн

Can we have a new object that will have properties from multiple objects, in JavaScript? This is very important concept in ES6. You gonna see it and use it in ReactJS more often.

How to merge two objects in JavaScript?
How to combine objects in JavaScript?
How to merge arrays in JavaScript?
How to combine arrays in JavaScript?
How can we combine properties of objects in JavaScript?

It's a Spread Operator in JavaScript. In JavaScript spread operator (...) allows us to quickly copy all or part of an existing array or object into another array or object. You can use spread operator to merge or combine objects or arrays. Properties that are different are copied or combined in new object but
same properties will be replaced or overwritten by the last object.

There are other use cases of spread operator as well, like it is used in combination with destructuring also. Okay, so combine objects, combine arrays, merge objects, merge arrays in JavaScript by using ... spread operator in JavaScript.

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