All challenges
Multiple ChoiceIntermediate 30s

Object.freeze

Choose the best answer for: Object.freeze
Options
  1. 1freeze is deep and also freezes every nested object value
  2. 2freeze prevents reading properties and throws on access
  3. 3Object.freeze makes an object immutable (shallow)
  4. 4freeze is reversible and can be undone by unfreeze calls

Think you can answer under pressure?

Get matched and answer live questions in 3-minute 1v1 battles. Elo ranking, badge tiers and bragging rights on the line.

Play this in a 3-minute battle