nishanthreddy114
nishanthreddy114
/ Rotate an array
Created
April 28, 2021 05:52
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| let activities = [ | |
| ['Work', 9], | |
| ['Eat', 1], | |
| ['Commute', 2], | |
| ['Play Game', 1], | |
| ['Sleep', 7] | |
| ]; | |
| function rotate( parameter ){ |
namklabs
/ rotateArrayRight.js
Created
April 26, 2016 04:23
rotate a 2D (2 dimensional) array clockwise (right) by 90 degrees in JavaScript
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| function rotateArrayRight( arr ){ | |
| // rotates a 2D array 90 degrees to the right (clockwise) | |
| var newarr = []; | |
| for( var x = 0; x < arr[0].length; x++ ){ | |
| newarr[x] = []; | |
| for( var y = arr.length - 1; y >= 0; y-- ){ | |
| newarr[x].push( arr[y][x] ); | |
| } |