如何在javascript中连接两个锯齿状数组

Question

我有两个数组 一个是：

[ [ 2, 'c' ],
  [ 2, 'e' ],
  [ 3, 'a' ],
  [ 3, 'b' ] ]

另一个是：

[ 3, [ 1, 'g' ], [ 2, [ 1, 'd' ], [ 1, 'f' ] ] ]

如何连接两者并得到像

这样的输出

[ [ 2, 'c' ],
  [ 2, 'e' ],
  [ 3, 'a' ],
  [ 3, 'b' ],
  [ 3, [ 1, 'g' ], [ 2, [ 1, 'd' ], [ 1, 'f' ] ] ]

Answer 1

var arr1 = [ [ 2, 'c' ],
             [ 2, 'e' ],
             [ 3, 'a' ],
             [ 3, 'b' ] ];  
var arr2 = [ 3, [ 1, 'g' ], [ 2, [ 1, 'd' ], [ 1, 'f' ] ] ];
arr1.push(arr2);

Answer 2

您是否尝试过使用点差运营商？请注意，IE不支持它。

const x = 
    [ [ 2, 'c' ],
    [ 2, 'e' ],
    [ 3, 'a' ],
    [ 3, 'b' ] ];

const y = [ 3, [ 1, 'g' ], [ 2, [ 1, 'd' ], [ 1, 'f' ] ] ];

const z = [...x, y];

console.log(z);

Answer 3

您可以将附加数组包装在额外的括号中，以便与Array#concat一起使用。

＆＃13;

＆＃13;

var a = [[2, 'c'], [2, 'e'], [3, 'a'], [3, 'b']],
    b = [3, [1, 'g'], [2, [1, 'd'], [1, 'f']]];
  
console.log(a.concat([b]));

＆＃13;

.as-console-wrapper { max-height: 100% !important; top: 0; }

＆＃13;

＆＃13;

＆＃13;

Answer 4

concat会将两个数组合并为一个数组而不更改原始数组

代码

const x = 
    [ [ 2, 'c' ],
    [ 2, 'e' ],
    [ 3, 'a' ],
    [ 3, 'b' ] ]

const y = [ 3, [ 1, 'g' ], [ 2, [ 1, 'd' ], [ 1, 'f' ] ] ];

const z = x.concat([y])

实施例

const x = [
  [2, 'c'],
  [2, 'e'],
  [3, 'a'],
  [3, 'b']
]

const y = [3, [1, 'g'],
  [2, [1, 'd'],
    [1, 'f']
  ]
];

const z = x.concat([y])

console.log(z)