toUpperCase Examples

The general syntax for this method is:

stringName.toUpperCase();

This method returns a copy of stringName with all lowercase letters replaced by their uppercase counterparts. It leaves non-alphabetic characters unchanged.

Example

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console.log("LaunchCode".toUpperCase());
console.log("launchcode".toUpperCase());
console.log("LaunchCode's LC101".toUpperCase());

Console Output

LAUNCHCODE
LAUNCHCODE
LAUNCHCODE'S LC101