以特定方式添加多维数组

Question

我需要一种方法来执行此操作，以便将输出作为

  var stuck = [["1","2","3"],["2","4","6"],["3","6","9"]]
  var duck = [["bean"],["stalk"],["jack"]]

//i need a output such that

  var output = [["bean","1","2","3"],["stalk","2","4","5"],["jack","3","6","9"]]

所以二维数组保持为二维数组，我可以将它与我现有的代码一起使用

Answer 1

假设两个数组长度相等：

var output = stuck.map((item, i) => {
  return [...duck[i], ...item];
});