Map Array In Object Javascript

Modified 5 years, 7 months ago. Call the array.from () method, passing it the map as the first parameter and a function as the second. I have an array of objects:

Let arr = [3, 4, 5, 6]; I would like to map the array to get keys and values for each object. To transform this array of arrays into an array of objects, you can simply pass a map function as the second (optional) argument to array.from () which will be called on every element of the array.

Const arr = maparr.map ( ( [key, value]) => ( {key, value}))

Remove duplicates using reduce() method. In this article, we’ll look at how to use javascript array’s map method with object instead of arrays. Map () does not execute the function for empty elements. We almost always need to manipulate them.