Putting it all together
Practice your knowledge by solving these challenges. Learn how to manipulate arrays and objects to work with data and create useful functions.
INSTRUCTIONS
Modify this function to take in an array as an argument. Return a new array that is identical to the original array, except that each item is multiplied by 2.
Example:
double([1, 2, 3]); // -> [2, 4, 6]
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