iterator?

iterator? â true or false

Instance Public methods

Returns true if yield would execute a block in the current context. The iterator? form is mildly deprecated.

def try
  if block_given?
    yield
  else
    "no block"
  end
end
try                  #=> "no block"
try { "hello" }      #=> "hello"
try do "hello" end   #=> "hello"

doc_ruby_on_rails

2015-04-17 10:53:12

Comments

Popular Articles

iterator.__iter__() iterator.__iter__() Return the iterator object itself. This is required to allow both containers and iterators to be used with the for and in stat

iterator Symbol.iterator A method that returns the default iterator for an object. Called by the semantics of the for-of statement.

Iterables Iterables An object is deemed iterable if it has an implementation for the Symbol.iterator property. Some built-in types like Array, Map, Set, String

iterator This header is part of the iterator library. Classes Primitives iterator_traits provides uniform interface to the properties of an itera

iter() iter(object[, sentinel]) Return an iterator object. The first argument is interpreted very differently depending on the presence of the second arg