concat(*args)
public
Appends the elements of +other_ary+s to self.
[ "a", "b" ].concat( ["c", "d"] ) #=> [ "a", "b", "c", "d" ] [ "a" ].concat( ["b"], ["c", "d"] ) #=> [ "a", "b", "c", "d" ] [ "a" ].concat #=> [ "a" ] a = [ 1, 2, 3 ] a.concat( [ 4, 5 ] ) a #=> [ 1, 2, 3, 4, 5 ] a = [ 1, 2 ] a.concat(a, a) #=> [1, 2, 1, 2, 1, 2]
See also Array#+.
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amasses -
May 3, 2010 - (<= v1_8_7_72)
2 thanks
Changes self
This method changes the object/array the method is called on. For example:
a = ["a", "b", "c"] b = ["x", "y", "z"] a.concat(b) #=> [a", "b", "c", "z", "y", "z"] a #=> [a", "b", "c", "z", "y", "z"]
In this example the object A is modified, the method modifies the object, then returns the new object.