Examples of Replace and test

• <SCRIPT LANGUAGE="JavaScript1.2">

• re = /(\w+)\s(\w+)/;

• str = "John Smith";

• newstr=str.replace(re, "$2, $1");

• document.write(newstr)

• </SCRIPT> // Prints out Smith, John

• Suppose re is a RegExp object and str a string, then:

• function testinput(re, str){

• if (re.test(str))

• midstring = " contains ";

• else

• midstring = " does not contain ";

• document.write (str + midstring + re.source);

• }

• Prints out a summary of matching result

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