What is freeze and seal in JavaScript?

Answer 1

Seal prevents changes to the named interfaces - no adds, deletes - but you can mutate the object and redefine the meaning of its interface. Similarity: both of them are used for creating non extensible objects. Difference : In Freeze configurable , enumerable and writable attributes of the object are set to false .
https://stackoverflow.com/questions/21402108/difference-between-freeze-and-seal