'Freezing' Arrays in Javascript?

Question

Since the ECMA-262 specifications Javascript has gained the Object.freeze() method, which allows for objects, whose properties can not be changed, added or removed.

Answer 1

Yes, it is applicable to arrays too.

const arr = [1,2,3,4];
Object.freeze(arr);
Object.isFrozen(arr)// true
arr.push(5) // you will get a type error
arr.pop() // you will get a type error