map: Convert Words to Uppercase

Use map to convert each word in the array to uppercase, then print them as comma-separated values.

Array:
['cat', 'dog', 'bird']

Steps:
1. Use map on the words array
2. Convert each word using toUpperCase()
3. Print the new array with join(',')

Expected Output:

CAT,DOG,BIRD↵

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

Hints2 available

Topics:

LoopsArraysmap

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