How do I use const with objects and arrays in JavaScript?

How do I use const with objects and arrays in JavaScript?

In JavaScript, using const means that the variable identifier cannot be reassigned. However, the contents of objects and arrays can still be modified.

Can you give me an example of using const with an array?

Sure! Here's an example: const fruits = ['apple', 'banana']; fruits.push('orange'); This modifies the array, but you can't reassign fruits to a new array.

What about using const with an object?

With objects, you can do something like this: const person = { name: 'Alice' }; person.age = 30; You can add properties, but you can't reassign person.

So, I can change the contents but not the variable itself?

Exactly! const protects the variable from being reassigned, but the data it holds can still be changed.