Ruby block_given? method

# used when we call method with and without block from different places
def try
  if block_given?
    yield
  else
    "no block"
  end
end
try                  #=> "no block"
try { "hello" }      #=> "hello"
try do "hello" end   #=> "hello"

Source: apidock.com

Similar codes

0 vote169 views1 answer
How do I update an index in rails
Ruby
0 vote160 views1 answer
Run method before rails
Ruby
0 vote151 views1 answer
Ruby-on-rails
Ruby
0 vote149 views1 answer
Ruby extract number from string
Ruby
0 vote163 views1 answer
Gem 'iex-ruby-client' how to set up
Ruby
0 vote157 views1 answer
Rails duplicate record
Ruby
0 vote145 views2 answers
Rails remove reference
Ruby
0 vote165 views2 answers
Infinite loop ruby
Ruby
1 vote166 views1 answer
For loop ruby
Ruby
0 vote159 views1 answer
Rails rspec destroy data after each test
Ruby