A Function Can Be Set Up to Accept a Variable Number of Arguments
<html> <head> <title>A Function Can Be Set Up to Accept a Variable Number of Arguments</title> <script type="text/javascript"> <!-- function welcomeMessage(userName) { if (userName != null) { document.writeln("Hello, " + userName); }else{ document.writeln("Welcome to our Web site!"); } numArgs = welcomeMessage.arguments.length; if(numArgs > 1) { for(var i = 1; i < numArgs; i++) { document.writeln("""+welcomeMessage.arguments[i]+"""); } } } // --> </script> </head> <body> <script type="text/javascript"> <!-- var userName = "David", extraMsg = "It has been a long time!"; var userName2 = null; var extraMsg1 = "Would you like to become a member?"; var extraMsg2 = "You can enroll online!"; welcomeMessage(userName, extraMsg); document.writeln("<hr>"); welcomeMessage(userName2, extraMsg1, extraMsg2); // --> </script> </body> </html>
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