From: Farrel Lifson <farrel.lifson@...>
Date: 2008-07-25T19:09:49+09:00
Subject: Re: optional parameter in functions

2008/7/25 Junkone <junkone1@gmail.com>:
> how do i make a parameter optional. if it is possible.
> for eg. i want to do as follows
>
> function myCall(a,b,c=somedefault)
> ..
> end
>
>
> myCall(a,b,c) or myCall(a,b)

You've got the basic idea. You just set the optional parameter to a
default value

>> def hello( who = "World" )
>>   puts "Hello, #{who}"
>> end
=> nil
>> hello "Bob"
Hello, Bob
=> nil
>> hello
Hello, World
=> nil

Farrel
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