ruby conditional operator ? :

[Yaxm Yaxm]

Hi,
in java, I can use ? : shorthand operators to ensure s is assigned to
some value.
String s = s == null ? "" : s;

Is there similar shorthand operator in Ruby?

Thanks.
Yaxm

 

[John Joyce]

Hi,
in java, I can use ? : shorthand operators to ensure s is assigned to
some value.
String s = s == null ? "" : s;

Is there similar shorthand operator in Ruby?

Thanks.
Yaxm

The same old ternary operator is in Ruby as in most languages these
days.
? :
so...

conditional_statement ? true_result : false_result

 

[Jano Svitok]

The same old ternary operator is in Ruby as in most languages these
days.
? :
so...

conditional_statement ? true_result : false_result

For assigning default value ||= is usually used (for non-logic values)

i.e.
@name ||= "Joe"

doesn't work for logic values (will overwrite false)
search google for ruby idioms (e.g.
http://wiki.rubygarden.org/Ruby/page/show/RubyIdioms)

Jano

 

[John Joyce]

For assigning default value ||= is usually used (for non-logic values)

i.e.
@name ||= "Joe"

doesn't work for logic values (will overwrite false)
search google for ruby idioms (e.g.
http://wiki.rubygarden.org/Ruby/page/show/RubyIdioms)

Jano

of course there are many ways to set default values. The Perl slogan
applies to Ruby very well.