在 JavaScript 中旋转 2 维(转置矩阵)
转置
矩阵(2 维数组)的转置仅是原始矩阵(2 维数组)的翻转版。我们可以通过将矩阵(2 维数组)的行与列互换来转置矩阵(2 维数组)。
示例
代码将如下 −
const arr = [ [1, 1, 1], [2, 2, 2], [3, 3, 3], ]; const transpose = arr => { for (let i = 0; i < arr.length; i++) { for (let j = 0; j < i; j++) { const tmp = arr[i][j]; arr[i][j] = arr[j][i]; arr[j][i] = tmp; }; } } transpose(arr); console.log(arr);
Learn JavaScript in-depth with real-world projects through our JavaScript certification course. Enroll and become a certified expert to boost your career.
输出
控制台中的输出 −
[ [ 1, 2, 3 ], [ 1, 2, 3 ], [ 1, 2, 3 ] ]
广告