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The recent sample: Check whether c"c" is uppercase or lowercase, doesn't matter if not letter
c"c"
c<"c"<{} // returns false, lower case "C"<{} // returns true, upper case
The recent sample: Check whether c is uppercase or lowercase, doesn't matter if not letter
c
c<{}
The recent sample: Check whether "c" is uppercase or lowercase, doesn't matter if not letter
"c"
"c"<{} // returns false, lower case "C"<{} // returns true, upper case
