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Ruby if syntax (Two expressions)

Let's say you're using if

Ruby syntax that looks something like this:

if foo == 3: puts "foo"
elsif foo == 5: puts "foobar"
else puts "bar"
end

Is there a way to do this so that Ruby does two things in an if statement, for example:

if foo == 3
    puts "foo"
    foo = 1
elsif foo = ...

How do I do this so that I can use two operators when using the first syntax?

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3 answers 


if foo == 3: puts "foo"; puts "baz"
elsif foo == 5: puts "foobar"
else puts "bar"
end


However, I advise against this.

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Ruby allows semicolons to separate statements on one line, so you can do:

if foo == 3: puts "foo"; puts "bar"
elsif foo == 5: puts "foobar"
else puts "bar"
end

To be neat, I would probably terminate both statements with ;

:



if foo == 3: puts "foo"; puts "bar";
elsif foo == 5: puts "foobar"
else puts "bar"
end

If you have a great reason, I wouldn't do it, because of its effect on readability. A normal block if

with multiple statements is much easier to read.

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I find that case statements look much better than if statements:

case foo
when 3
  puts "foo"
when 5
  puts "foobar"
else
  puts "bar"
end

And it allows multiple operators to be used for each condition.

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