小编sta*_*r67的帖子

我有一个嵌套的对象数组，如下所示。

[
    {
        "region": null,
        "country": null,
        "territory": "Worldwide",
        "territoryCode": "ALL",
        "t2": null,
        "t3": null,
        "t4": null,
        "t5": null,
        "t6": null,
        "t7": null,
        "localLanguage": {
            "territoryId": 1,
            "localLanguageName": "N/A",
            "localLanguageCode": null
        }
    },
    {
        "region": "Africa",
        "country": "Madagascar",
        "territory": null,
        "territoryCode": "MG",
        "t2": "AFR",
        "t3": "MG",
        "t4": null,
        "t5": null,
        "t6": null,
        "t7": null,
        "localLanguage": {
            "territoryId": 30,
            "localLanguageName": "Malagasy, French",
            "localLanguageCode": "MLG, FRE"
        }
    },
    {
        "region": "Africa",
        "country": null,
        "territory": null,
        "territoryCode": "AFR",
        "t2": "AFR",
        "t3": null,
        "t4": …

如何在写入Node Js中的文件时将对象推入数组？我目前有以下工作代码

fs.appendFile("sample.json", JSON.stringify(data, undefined, 2) + ",");

其中 data 是一个对象，比如

{
name:'abc',
age: 22,
city: 'LA'
}

追加后，结果如下

{
name:'abc',
age: 22,
city: 'LA'
},
{
name:'def',
age: 25,
city: 'MI'
},

我在这里看到 2 个问题。1.末尾的尾随逗号 2.无法形成数组并将对象推入其中

任何线索将不胜感激