将数组插入数组数组Javascript答案

【问题标题】：Insert Array into an Array of Arrays Javascript将数组插入数组数组Javascript
【发布时间】：2018-08-13 21:01:30
【问题描述】：

我尝试过拼接、连接、应用、调用等。

我要做的就是采用这样的数组：

[["alksjdflskdj","2","1.33","1.30","", "5","1","1","1","1","1","0","","Other notes"],
 ["test","1","","","","1","0","1","0","0","0","",""],
 ["test3","","","","","","0","0","0","0","0","",""],
 ["","","","","","","0","0","0","0","0","",""],
 ["","","","","","","0","0","0","0","0","",""]]

并在上面的数组中添加这样的内容：

["2018-03-06 04:14:59", "T", "", "", "0"]

最终结果如下所示：

[["alksjdflskdj","2","1.33","1.30","", "5","1","1","1","1","1","0","","Other notes"],
 ["test","1","","","","1","0","1","0","0","0","",""],
 ["test3","","","","","","0","0","0","0","0","",""],
 ["","","","","","","0","0","0","0","0","",""],
 ["","","","","","","0","0","0","0","0","",""],
 ["2018-03-06 04:14:59", "T", "", "", "0"]]

提前致谢。这让我很难过。

【问题讨论】：

array_of_arrays.push(new_array)?

标签： javascript jquery arrays multidimensional-array

【解决方案1】：

您可以使用其他人已经提到的push() 来向现有数组添加元素：

arr1.push(ele); // arr1 now has ele at last index

您可以使用concat()，它不会改变原始array 并返回一个全新的：

var arr2 = arr1.concat(ele) // arr1 remains the same and arr2 has arr1 with ele at las index

这取决于您的需求。

【讨论】：

谢谢！非常感谢您提供的额外信息

【解决方案2】：

使用push 方法将元素添加到数组的末尾。

var originalArray = [
  ["alksjdflskdj", "2", "1.33", "1.30", "", "5", "1", "1", "1", "1", "1", "0", "", "Other notes"],
  ["test", "1", "", "", "", "1", "0", "1", "0", "0", "0", "", ""],
  ["test3", "", "", "", "", "", "0", "0", "0", "0", "0", "", ""],
  ["", "", "", "", "", "", "0", "0", "0", "0", "0", "", ""],
  ["", "", "", "", "", "", "0", "0", "0", "0", "0", "", ""]
]

var ArrayToPush = ["2018-03-06 04:14:59", "T", "", "", "0"];

originalArray.push(ArrayToPush);
console.log(originalArray)

【讨论】：

这正是我尝试过的，它给了我“thearray.push 不是函数”
@user3259138 如果您可以分享您尝试过的代码，我可以帮助您
所以这段代码有效，问题是我需要在原始数组上使用 JSON.parse，因为我是从本地存储中提取它的。我非常感谢您提供帮助@brk

【解决方案3】：

您需要使用push() 方法来实现您的目标。这是一个sn-p：

var initial = [
    ["alksjdflskdj","2","1.33","1.30","", "5","1","1","1","1","1","0","","Other notes"],
    ["test","1","","","","1","0","1","0","0","0","",""],
    ["test3","","","","","","0","0","0","0","0","",""],
    ["","","","","","","0","0","0","0","0","",""],
    ["","","","","","","0","0","0","0","0","",""]
];

var new_array = ["2018-03-06 04:14:59", "T", "", "", "0"];
initial.push(new_array);

initial 现在包含您要查找的新数组。

【讨论】：

【解决方案4】：

您可以使用array#push() 向数组中添加新元素。

var data = [["alksjdflskdj","2","1.33","1.30","", "5","1","1","1","1","1","0","","Other notes"],["test","1","","","","1","0","1","0","0","0","",""],["test3","","","","","","0","0","0","0","0","",""],["","","","","","","0","0","0","0","0","",""],["","","","","","","0","0","0","0","0","",""]],
    arr = ["2018-03-06 04:14:59", "T", "", "", "0"];
data.push(arr);
console.log(data);

【讨论】：

【解决方案5】：

你可以尝试像这样使用Array.push()

var datas = [["alksjdflskdj","2","1.33","1.30","", "5","1","1","1","1","1","0","","Other notes"],["test","1","","","","1","0","1","0","0","0","",""],["test3","","","","","","0","0","0","0","0","",""],["","","","","","","0","0","0","0","0","",""],["","","","","","","0","0","0","0","0","",""]];

然后

datas.push(["2018-03-06 04:14:59", "T", "", "", "0"])

【讨论】：

【解决方案6】：

将要推送的元素存储在变量中

使用push()

arr.push(ele);

这会自动增加索引并插入到最后

【讨论】：

谢谢。感谢您的回答。