ary.rotate!(count=1) â ary
Instance Public methods
Rotates self
in place so that the element at
count
comes first, and returns self
.
If count
is negative then it rotates in the opposite
direction, starting from the end of the array where -1
is the
last element.
1 2 3 4 5 | a = [ "a" , "b" , "c" , "d" ] a.rotate! #=> ["b", "c", "d", "a"] a #=> ["b", "c", "d", "a"] a.rotate!( 2 ) #=> ["d", "a", "b", "c"] a.rotate!(- 3 ) #=> ["a", "b", "c", "d"] |
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