Capitalize Words Starting With a Certain Letter

Given an array of words, use map to return a new array where all words starting with the letter 'a' are converted to uppercase. Words that don’t start with 'a' should stay the same.

For example, ['ant', 'dog', 'alligator', 'cat'] should become ['ANT', 'dog', 'ALLIGATOR', 'cat'].

Tip: You can use toUpperCase() to turn a word into uppercase.
JavaScript
Console