Converting strings between uppercase and lowercase
Flash Player 9 and later, Adobe AIR 1.0 and
later
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As the following example shows, the
toLowerCase()
method
and the
toUpperCase()
method convert alphabetical
characters in the string to lowercase and uppercase, respectively:
var str:String = "Dr. Bob Roberts, #9."
trace(str.toLowerCase()); // dr. bob roberts, #9.
trace(str.toUpperCase()); // DR. BOB ROBERTS, #9.
After these methods are executed, the source string remains unchanged.
To transform the source string, use the following code:
str = str.toUpperCase();
These methods work with extended characters, not simply a–z and
A–Z:
var str:String = "José Barça";
trace(str.toUpperCase(), str.toLowerCase()); // JOSÉ BARÇA josé barça
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