Deep freeze an object or array.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/freeze
const frozen = deepFreeze({ nested: { value: 1 } });Object.isFrozen(frozen); // trueObject.isFrozen(frozen.nested); // true Copy
const frozen = deepFreeze({ nested: { value: 1 } });Object.isFrozen(frozen); // trueObject.isFrozen(frozen.nested); // true
Deep freeze an object or array.