Javascript Map Return Array Of Objects

This will work too, but it is essentially just a different way to write the code, i added this because the op did not understand the parenthesis, and i ran across this thread while solving an issue myself: To iterate over the array i used the map () function. When i do array1.map, it returns:

The syntax of javascript map method is defined as like below : In this article, you will learn why and how to use each one. Const data = my_arr.map((element,index) => { return {a:element,b:index}});

To transform this into an array of objects instead, you can call the array.prototype.map () method on the resulting array, for example, in the following way:

I want to make array1 to be like this after mapping the lastname: I have an array of object from which i am trying to get values using map operator but i am getting the whole json objects all i want is just array of values. Step 4 — reformatting array objects. You can use this on arr to get the updated array: