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Double Evens
BeginnerJavaScript
Reward: +40 XP
PROBLEM

Double Evens

Write a function doubleEvens(arr) that takes an array of numbers, filters out the odd numbers, doubles the even numbers, and returns the new array.

Examples
doubleEvens([1, 2, 3, 4])
[4, 8]
doubleEvens([5, 7, 9])
[]
solution.js
JAVASCRIPT
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Tests

0 of 3 passing
  • mix of numbers → evens doubled
    doubleEvens([1, 2, 3, 4])
    expected [4, 8]
  • all odds → []
    doubleEvens([5, 7, 9])
    expected []
  • empty array → []
    doubleEvens([])
    expected []
On the line
+40 XP
Pass all 3 tests to claim it.