Package Exports

matrix-rotate

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Readme

matrix-rotate

Rotate a 2D JavaScript array in place by 90 degrees, with a simple command.

Example:

var rotate = require('matrix-rotate');

var matrix = [
    [1,2,3,4],
    [5,6,7,8],
    [9,10,11,12],
    [13,14,15,16]
];

rotate(matrix);

console.log(matrix);
/*
    Output:
    [ 
        [ 13, 9, 5, 1 ],
      	[ 14, 10, 6, 2 ],
      	[ 15, 11, 7, 3 ],
      	[ 16, 12, 8, 4 ] 
      ];
 */

Installation

npm install matrix-rotate

Preconditions

Matrices are square (it cannot rotate a non-square matrix).