meaning of {} in ruby
Meaning of {} in Ruby
In Ruby, the curly braces {}
are used to define a block of code or to create a hash, which is a collection of key-value pairs. When used to define a block, the curly braces are often used with methods that accept a block of code as an argument. When used to create a hash, the curly braces are used to enclose the key-value pairs within the hash.
Defining a Block of Code: In Ruby, curly braces are often used to define a block of code. For example:
3.times { puts "Hello, world!" }
This code will print "Hello, world!" three times.
Creating a Hash: Curly braces are also used to create a hash in Ruby. For example:
my_hash = { "name" => "John", "age" => 30 }
In this example, the curly braces are used to enclose the key-value pairs within the hash.