Krug.ArrayUtil (Krug v2.0.27) View Source
Utilitary module to handle array transformations.
Link to this section Summary
Functions
Rotates an array X positions in direction from right to left.
A initial array [1,2,3,4] turn in [4,1,2,3] if rotate positions equal
to 1.
Rotates an array X positions in direction from left to right.
A initial array [1,2,3,4] turn in [2,3,4,1] if rotate positions equal
to 1.
Link to this section Functions
Rotates an array X positions in direction from right to left.
A initial array [1,2,3,4] turn in [4,1,2,3] if rotate positions equal
to 1.
The parameter unsafe can be set to true when you have total sure that all parameters are
not null/empty. This will improve some performance.
Examples
iex > Krug.ArrayUtil.rotate_left(nil,1)
niliex > Krug.ArrayUtil.rotate_left([],1)
[]iex > Krug.ArrayUtil.rotate_left([1],2)
[1]iex > Krug.ArrayUtil.rotate_left([1,2,3,4],1)
[4,1,2,3]iex > Krug.ArrayUtil.rotate_left([1,2,3,4],3)
[2,3,4,1]Rotates an array X positions in direction from left to right.
A initial array [1,2,3,4] turn in [2,3,4,1] if rotate positions equal
to 1.
The parameter unsafe can be set to true when you have total sure that all parameters are
not null/empty. This will improve some performance.
Examples
iex > Krug.ArrayUtil.rotate_right(nil,1)
niliex > Krug.ArrayUtil.rotate_right([],1)
[]iex > Krug.ArrayUtil.rotate_right([1],2)
[1]iex > Krug.ArrayUtil.rotate_right([1,2,3,4],nil)
[1,2,3,4]iex > Krug.ArrayUtil.rotate_right([1,2,3,4],1)
[2,3,4,1]iex > Krug.ArrayUtil.rotate_right([1,2,3,4],3)
[4,1,2,3]