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Multiple ChoiceBeginner 30s

Array filter

Choose the best answer for: filter method
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  1. 1arr.filter(fn) returns only the first element that matches fn
  2. 2arr.filter(fn) is exactly the same as arr.map(fn) for all inputs
  3. 3arr.filter(fn) mutates the original array and returns that array
  4. 4arr.filter(fn) returns new array with elements passing fn test
javascriptbeginner

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