Map Object To Array Javascript

To map an array of elements in javascript, use the array.map () method. Here, we have defined variable named superheroes with the object values as shown above. Arr.map (function (element, index, array) { }, this);

Definition and usage map () creates a new array from calling a function for every array element. The grouptomap() method groups the elements of the calling array using the values returned by a provided testing function. In our example, every element is an array of objects, and we want to convert this array of objects into a map object.

After the function is called on the last element in the array, the value of accumulator is returned as the return value of reduce.

The final returned map uses the unique values from the test function as keys, which can be used to get the array of elements in each group. The callback function () is called on each array element, and the map () method always passes the current element, the index of the current element, and the whole array object to it. The final returned map uses the unique values from the test function as keys, which can be used to get the array of elements in each group. Here, we have defined variable named superheroes with the object values as shown above.