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Multiple ChoiceBeginner 30s

null vs undefined

undefined means a variable is declared but not assigned; null is:
Options
  1. 1Also unassigned, a variable the engine never gave a value
  2. 2An intentional absence of value set by the programmer
  3. 3A number type used to represent a missing numeric result
  4. 4A boolean type used to represent a missing logical result
javascriptmcqbeginner

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