Array Object Map Javascript

I have a constructor in javascript which contains 2 properties key and values array: 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. Obj.map((key, val) => console.log(key, val));

The data is given by the following 2d array The method is primarily useful when grouping elements that are associated with an object, and in particular when that. I already try many stuff like object.entries(obj) but it always results in complicated solution with many brackets like object.entries(obj)[0][1] is there a simple, nice and efficient way to map an array of object.

The array map method in javascript is used to create a new array of required elements from the existing array or array of objects.

It is not currently accepting answers. The map () method in javascript creates an array by calling a specific function on each element present in the parent array. The foreach () method calls a function for each item in the array. Obj.map((key, val) => console.log(key, val));