javascript String toLowerCase( ), toUpperCase( )
@March 15, 2008, 1:22 a.m.
toLowerCase( ), toUpperCase( ) | Firefox/Netscape/NN 2 IE 3 ECMA 1 |
Return 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( ); |
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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) { ... } |
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Parameters | |
None. |
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Returned Value | |
String. |
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