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ES6 - toUpperCase()
This method returns the calling string value converted to uppercase.
Syntax
string.toUpperCase()
Return Value
Returns a string representing the specified object.
Example
var str = "Apples are round, and Apples are Juicy."; console.log(str.toUpperCase( ));
Output
APPLES ARE ROUND, AND APPLES ARE JUICY.
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