How-To Geek
Ruby If, Else If Command Syntax
The Ruby language has a very simple control structure that is easy to read and follow.
If syntax
if var == 10
print “Variable is 10″
end
If Else Syntax
if var == 10
print “Variable is 10″
else
print “Variable is something else”
end
If Else If Syntax
Here’s the key difference between Ruby and most other languages. Note that “else if” is actually spelled “elsif” without the e.
if var == 10
print “Variable is 10″
elsif var == “20″
print “Variable is 20″
else
print “Variable is something else”
end
Ternary (shortened if statement) Syntax
Ternary syntax is the same in Ruby as most languages. The following sample will print “The variable is 10″ if var is equal to 10. Otherwise it will print “The variable is Not 10″.
print “The variable is ” + (var == 10 ? “10″ : “Not 10″)
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Comments (8)
Programmer by day, geek by night, The Geek, also known as Lowell Heddings, spends all his free time bringing you fresh geekery on a daily basis. You can follow him on Google+ if you'd like.
- Published 12/31/69
i can’t understand msdos command
help me :(
it isn’t msdos commands
perl uses elsif.
nothing is more natural.
this is not a ‘key difference’ of ruby
@perl lover: “more natural” != “most languages”
“Here’s the key difference between Ruby and most other languages.” != “Here’s the key difference between Ruby and Perl Lover’s favourite language.”
I do agree, it’s hardly a ‘key difference’! But citing a single counterexample does nothing to argue against this being a point of difference between Ruby and most other languages. Unless you invite people from most other languages to do same.
So people developped ruby to be able to spell “elsif” instead of “elseif” as other languages ?
In python there is elif. Is it the reason why Nasa uses it?
Ahhh you guys are all wrong.
Its called elsif because its a magic secret!!!
Just look out for the magic :3 MAGIC!!!!