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Multiple ChoiceBeginner 30s

Default Parameters — Expressions

Choose the best answer for: default parameter values
Options
  1. 1Defaults use the || operator, so falsy values drop
  2. 2function f(x = 5) uses 5 if x is undefined
  3. 3Defaults only work with objects, not other types
  4. 4Defaults must be numbers, other literals are errors

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