ES6

So, recently, I was doing a code review and found a piece of code which is like below



As you can see in the above code, The empty array that is defined as const is mutable. This is because - the constant constraint is enforced only on the variable type and not inside it.

This is the same with objects as well. You can see the example below

Many a times we receive data from API calls that are strings which hold Arrays/ objects. To extract these array/objects we use JSON.parse. There is a better now in ES6.

below is the code snippet