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Chapter 11

Objects and properties

The property model — keys, attributes, accessors, integrity levels — and copying and comparing objects.
7 questions
  1. 010What can be a property key, and in what order are keys listed?Coming soonmedium
  2. 020What are property descriptors?Coming soonCoremedium
  3. 030Object.freeze vs seal vs preventExtensions?Coming sooneasy
  4. 040How do getters and setters work?Coming sooneasy
  5. 050How do you list an object's properties?Coming sooneasy
  6. 060Shallow vs deep copy — spread, Object.assign, or structuredClone?Coming soonCoremedium
  7. 070How do you compare two objects for equality?Coming soonmedium