Name
toLowerCase(), toUpperCase() — NN 2 IE J1 ECMA 1
Synopsis
Returns a copy of the current string in all lowercase or uppercase letters. If you want to replace the current string with a case-adjusted version, assign the result of the method to the same string:
myString = myString.toUpperCase()
It is common to use either one of these methods to create a case-insensitive comparison of two strings. This is especially convenient if one of the strings being compared is entered by a user, who may submit a variety of case situations:
if (document.forms[0].entry.value.toLowerCase() == compareValue) { ... }
Returned Value
String.
Parameters
None.
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