convert an array to uppercase or lowercase js

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Reef
14 Apr 2016
1var fruits = ["Banana", "Orange", "Apple", "Mango"];
2undefined
3string = fruits.join(' ').toUpperCase();
4// Output"BANANA ORANGE APPLE MANGO"
source
Manuel
15 Aug 2016
1var a = ['this','is','test'];
2
3a.map(f=>{ return f.toUpperCase(); });
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