React Js Map Array Of Objects

The new array contains the items returned from this function. The javascript map method is used to call a function on each element of an array to create a different array based on the outputs of the function. Let’s understand the map () method with the help of a simple example.

The map() function is used to iterate over an array and manipulate or change data items. The array map () function in javascript is used to create a new array with a given array, by executing a function for all the elements in the given array. Except the fact that in react you use jsx and you can make that map dirrectly in the render function.

I have array of objects and iterated through the object using the array function (map) since we have the same key on all the objects not sure how to assign aa to 123, bb to 345 and cc to 555?

Luckily for us, this is easy to do in jsx thanks to an array method called map (). The javascript map method is used to call a function on each element of an array to create a different array based on the outputs of the function. Generally, map() method is used to iterate over an array and calling function on every element of the array. What is map function in react?