Class: Object

Inherits:
BasicObject
Defined in:
mrbgems/mruby-object-ext/mrblib/object.rb

Instance Method Summary collapse

Instance Method Details

#tap {|_self| ... } ⇒ Object

call-seq: obj.tap{|x|…} -> obj

Yields x to the block, and then returns x. The primary purpose of this method is to “tap into” a method chain, in order to perform operations on intermediate results within the chain.

(1..10) .tap x puts “original: #{x.inspect”}    
.to_a .tap x puts “array: #{x.inspect”}    
.select x x%2==0 .tap x puts “evens: #{x.inspect”}
.map { x x*x } .tap x puts “squares: #{x.inspect”}

Yields:

  • (_self)

Yield Parameters:

  • _self (Object)

    the object that the method was called on


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# File 'mrbgems/mruby-object-ext/mrblib/object.rb', line 15

def tap
  yield self
  self
end