map: Double Each Number

Use map to create a new array where each number is doubled, then print the result as comma-separated values.

Array:
[1, 2, 3, 4]

Steps:
1. Use map on the provided numbers array
2. Return each number multiplied by 2
3. Print the new array using join(',')

Expected Output:

2,4,6,8↵

= newline. The output ends with a newline — print one after the last line.

Hints2 available

Topics:

LoopsArraysmap

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