Javascript 向第一个元素添加双引号

我的时间戳没有双引号，我需要第一个元素all timestamp的双引号

我尝试使用replace，但错误提示：chaine.replace不是函数

    var globalTab = [];
    globalTab.push(TabJSON)
    console.log(globalTab)
    // OUTPUT 
    [[{Timestamp: 2019-01-15T08:26:00.000Z, Average: 200},
        {Timestamp: 2019-01-15T08:32:00.000Z, Average: 200},
        {Timestamp: 2019-01-15T08:26:00.000Z, Average: 200},
        {Timestamp: 2019-01-15T08:29:00.000Z, Average: 200},
        {Timestamp: 2019-01-15T08:35:00.000Z, Average: 200}],
    [{Timestamp: 2019-01-15T08:26:00.000Z, Average: 200},
        {Timestamp: 2019-01-15T08:32:00.000Z, Average: 200},
        {Timestamp: 2019-01-15T08:26:00.000Z, Average: 200},
        {Timestamp: 2019-01-15T08:29:00.000Z, Average: 200},
        {Timestamp: 2019-01-15T08:35:00.000Z, Average: 200}]]

chaine = globalTab
chaine=chaine.replace(/(\d{4}-\d{2}[^,]+,)/g,'"$1"');
console.log(chaine)
// Error

预期结果：

  [[{Timestamp: "2019-01-15T08:26:00.000Z", Average: 200},
        {Timestamp: "2019-01-15T08:32:00.000Z", Average: 200},
        {Timestamp: "2019-01-15T08:26:00.000Z", Average: 200},
        {Timestamp: "2019-01-15T08:29:00.000Z", Average: 200},
        {Timestamp: "2019-01-15T08:35:00.000Z", Average: 200}],
    [{Timestamp: "2019-01-15T08:26:00.000Z", Average: 200},
        {Timestamp: "2019-01-15T08:32:00.000Z", Average: 200},
        {Timestamp: "2019-01-15T08:26:00.000Z", Average: 200},
        {Timestamp: "2019-01-15T08:29:00.000Z", Average: 200},
        {Timestamp: "2019-01-15T08:35:00.000Z", Average: 200}]]

---

我不知道这是否是最有效的方法，但我尝试用这种方法，因为我也不知道它是sa字符串还是数组数组。如果它是一个字符串，则使用replace，但它看起来像一个数组，即使你看不到引号，如果它是一个对象，它们也隐式地存在。无论如何有了这个，我想它会对你有用的

    var newGlobalTab=[];
    for (var i=0;i<globalTab.length;i++){
        var elem=[]
        for (var j in globalTab[i]){
            elem.push({Timestamp:'"'+globalTab[i][j]["Timestamp"]+'"', Average:globalTab[i][j]["Average"]});
        }
        newGlobalTab.push(elem);
    }
    console.log(newGlobalTab);

---

我希望它能对你有帮助，很抱歉我不能带来最有效的方法。同样对不起我的英语，我以前说西班牙语。

首先你需要将其转换为字符串。。。所以，在我的控制台中，我做了以下测试：

var globalTab = `[[{Timestamp: 2019-01-15T08:26:00.000Z, Average: 200},
    {Timestamp: 2019-01-15T08:32:00.000Z, Average: 200},
    {Timestamp: 2019-01-15T08:26:00.000Z, Average: 200},
    {Timestamp: 2019-01-15T08:29:00.000Z, Average: 200},
    {Timestamp: 2019-01-15T08:35:00.000Z, Average: 200}],
[{Timestamp: 2019-01-15T08:26:00.000Z, Average: 200},
    {Timestamp: 2019-01-15T08:32:00.000Z, Average: 200},
    {Timestamp: 2019-01-15T08:26:00.000Z, Average: 200},
    {Timestamp: 2019-01-15T08:29:00.000Z, Average: 200},
    {Timestamp: 2019-01-15T08:35:00.000Z, Average: 200}]]`

之后，将替换修改为：

globalTab = globalTab.replace(/(\d{4}-\d{2}[^,]+Z)/g,'"$1"');

您可以在浏览器控制台中测试预期的结果：

"[[{Timestamp: "2019-01-15T08:26:00.000Z", Average: 200},
    {Timestamp: "2019-01-15T08:32:00.000Z", Average: 200},
    {Timestamp: "2019-01-15T08:26:00.000Z", Average: 200},
    {Timestamp: "2019-01-15T08:29:00.000Z", Average: 200},
    {Timestamp: "2019-01-15T08:35:00.000Z", Average: 200}],
[{Timestamp: "2019-01-15T08:26:00.000Z", Average: 200},
    {Timestamp: "2019-01-15T08:32:00.000Z", Average: 200},
    {Timestamp: "2019-01-15T08:26:00.000Z", Average: 200},
    {Timestamp: "2019-01-15T08:29:00.000Z", Average: 200},
    {Timestamp: "2019-01-15T08:35:00.000Z", Average: 200}]]"

---

希望能对您有所帮助。

GlobalTabled在哪里定义？是的，对不起，我只显示脚本中最重要的部分。它是以前定义的，只是日期对象的控制台输出。你到底为什么要添加？因为对一个对象这样做是没有意义的。我假设你想生成json？你可以将整个json对象字符串化。@SudhirOjha没有json对象……json是字符串