javascript 访问带索引的多维数组

Posted 2021-05-03

// declare nested array
var arr = [
  [1, 2, 3],
  [4, 5, 6],
  [7, 8, 9],
  [[10, 11, 12], 13, 14]
];
  
// access fourth array
arr[3];   // [[10, 11, 12], 13, 14]

// one level deeper
arr[3][0];    // [10, 11, 12]

// one level deeper
arr[3][0][1];   // 11