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Multiple ChoiceBeginner 30s

Array map

Choose the best answer for: map method
Options
  1. 1arr.map(fn) filters the array and keeps the matching elements
  2. 2arr.map(fn) is asynchronous and returns a pending Promise value
  3. 3arr.map(fn) returns a new array with fn applied to each element
  4. 4arr.map(fn) mutates the original array and returns it in place
javascriptbeginner

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