Question

I have a background from languages which use {} to say that these are “block of statements” but i am learning ruby and really confused how it being done there.

So lets say in C i have

if ( condition )
{
  statement1;
  statement2;
}
else if (condition)
{
  statement1;
  statement2;

// nested if
       if (condition)
       {
          dosomethinghere;
       }
    }
    else
    {
      statement1;
      statement2;
    }

How i can put this code in ruby? and also mention how to understand synomenous of “{}” in ruby, thanks.

Answer 1

Well, to answer your first question:

if ( condition )
  statement1
  statement2
elsif (condition)
  statement1
  statement2
   // nested if
   if (condition)
     dosomethinghere
   end
else
  statement1
  statement2
end

The syntax rule for if statement is:

 if expr [then]
   expr...
[elsif expr [then]
    expr...]...
[else
   expr...]
 end

Where everything between [] is optional

However, and in other direction, you can also create and pass code blocks, check this post to read more about this topic.