是的,你可以有评论。 但我不建议任何上述理由。

我做了一些调查,我发现所有json都要求使用 json.parse 方法的方法。所以我找到了一个解决办法: 我们可以控制或修补猴子绕着json.parse。

注:仅用节点/js 测试;-)

var oldParse = JSON.parse;
JSON.parse = parse;
function parse(json){
    json = json.replace(/\/\*.+\*\//, function(comment){
        console.log("comment:", comment);
        return "";
    });
    return oldParse(json)
}

json 文件 :

{
  "test": 1
  /* Hello, babe */
}

没有。

json is only data. 如果您包含一个注释, 那么它也必须是数据 。

您可以有一个名为“_comment”(或某物)的指定数据元素,该元素应该被使用json数据的应用程序忽略。

您也许最好在生成/接收json的进程中得到评论,因为他们应该知道json数据的预发内容,或者至少知道它的结构。

但如果你决定:

{
   "_comment": "comment text goes here...",
   "glossary": {
      "title": "example glossary",
      "GlossDiv": {
         "title": "S",
         "GlossList": {
            "GlossEntry": {
               "ID": "SGML",
               "SortAs": "SGML",
               "GlossTerm": "Standard Generalized Markup Language",
               "Acronym": "SGML",
               "Abbrev": "ISO 8879:1986",
               "GlossDef": {
                  "para": "A meta-markup language, used to create markup languages such as DocBook.",
                  "GlossSeeAlso": ["GML", "XML"]
               },
               "GlossSee": "markup"
            }
         }
      }
   }
}

至少这是我在Json. org的一眼 所经历的

json的语法在那一页上被视觉化了。

json不允许评论本身。推理是完全愚蠢的, 因为你可以使用json自己来创造评论, 这完全排除了推理, 并且毫无理由地在完全相同的结果和潜在问题上加载采集数据空间, 比如: 带有评论的json文件。

如果您试图在(使用 / 或 / * * * 或 ) 中发表评论, 那么某些剖析器将会失败, 因为严格来说这不在json 的规格之内 。 所以您不应该这样做 。

例如,在这里,我的图像操作系统保存了图像标记和一些基本格式化(注释)信息(底部):

{
    "Notations": [
        {
            "anchorX": 333,
            "anchorY": 265,
            "areaMode": "Ellipse",
            "extentX": 356,
            "extentY": 294,
            "opacity": 0.5,
            "text": "Elliptical area on top",
            "textX": 333,
            "textY": 265,
            "title": "Notation 1"
        },
        {
            "anchorX": 87,
            "anchorY": 385,
            "areaMode": "Rectangle",
            "extentX": 109,
            "extentY": 412,
            "opacity": 0.5,
            "text": "Rect area\non bottom",
            "textX": 98,
            "textY": 385,
            "title": "Notation 2"
        },
        {
            "anchorX": 69,
            "anchorY": 104,
            "areaMode": "Polygon",
            "extentX": 102,
            "extentY": 136,
            "opacity": 0.5,
            "pointList": [
                {
                    "i": 0,
                    "x": 83,
                    "y": 104
                },
                {
                    "i": 1,
                    "x": 69,
                    "y": 136
                },
                {
                    "i": 2,
                    "x": 102,
                    "y": 132
                },
                {
                    "i": 3,
                    "x": 83,
                    "y": 104
                }
            ],
            "text": "Simple polygon",
            "textX": 85,
            "textY": 104,
            "title": "Notation 3"
        }
    ],
    "imageXW": 512,
    "imageYW": 512,
    "imageName": "lena_std.ato",
    "tinyDocs": {
        "c01": "JSON image notation data:",
        "c02": "-------------------------",
        "c03": "",
        "c04": "This data contains image notations and related area",
        "c05": "selection information that provides a means for an",
        "c06": "image gallery to display notations with elliptical,",
        "c07": "rectangular, polygonal or freehand area indications",
        "c08": "over an image displayed to a gallery visitor.",
        "c09": "",
        "c10": "X and Y positions are all in image space. The image",
        "c11": "resolution is given as imageXW and imageYW, which",
        "c12": "you use to scale the notation areas to their proper",
        "c13": "locations and sizes for your display of the image,",
        "c14": "regardless of scale.",
        "c15": "",
        "c16": "For Ellipses, anchor is the  center of the ellipse,",
        "c17": "and the extents are the X and Y radii respectively.",
        "c18": "",
        "c19": "For Rectangles, the anchor is the top left and the",
        "c20": "extents are the bottom right.",
        "c21": "",
        "c22": "For Freehand and Polygon area modes, the pointList",
        "c23": "contains a series of numbered XY points. If the area",
        "c24": "is closed, the last point will be the same as the",
        "c25": "first, so all you have to be concerned with is drawing",
        "c26": "lines between the points in the list. Anchor and extent",
        "c27": "are set to the top left and bottom right of the indicated",
        "c28": "region, and can be used as a simplistic rectangular",
        "c29": "detect for the mouse hover position over these types",
        "c30": "of areas.",
        "c31": "",
        "c32": "The textx and texty positions provide basic positioning",
        "c33": "information to help you locate the text information",
        "c34": "in a reasonable location associated with the area",
        "c35": "indication.",
        "c36": "",
        "c37": "Opacity is a value between 0 and 1, where .5 represents",
        "c38": "a 50% opaque backdrop and 1.0 represents a fully opaque",
        "c39": "backdrop. Recommendation is that regions be drawn",
        "c40": "only if the user hovers the pointer over the image,",
        "c41": "and that the text associated with the regions be drawn",
        "c42": "only if the user hovers the pointer over the indicated",
        "c43": "region."
    }
}

json 的作者希望我们把评论写进json里, 但是在解析之前先把评论删掉( 见 Michael Burr 提供的链接 ) 。 如果json 有评论的话, 为什么不将评论标准化, 让 Json 牧师来做工作? 我不同意这里的逻辑, 但是, 可惜, 这就是标准。 使用其他人建议的山药解决方案是好的, 但是它需要图书馆的依赖性 。

如果您想要删除注释, 但不想有图书馆依赖性, 这里是一个双线解决方案, 用于 c++- 风格的注释, 但可以适应其它选项 :

var comments = new RegExp("//.*", 'mg');
data = JSON.parse(fs.readFileSync(sample_file, 'utf8').replace(comments, ''));

请注意,只有在您可以确定json数据不含评论启动器的情况下,例如('/'),才能使用这一解决方案。

实现 json 解析、 解析评论和不增加图书馆的另一种方法, 就是用 javascript 解释器来评价json 。 当然, 这个方法的提醒是, 您只想要评价未污染的数据( 不可信用户- 输入 ) 。 这是在 node. js 中的一个例子-- 另一个警告, 以下示例将只读过一次数据, 然后它会被缓存 :

data = require(fs.realpathSync(doctree_fp));

json背后的想法是提供各种应用程序之间的简单数据交换。 这些应用程序通常是基于网络的,语言是javascript。

但是,虽然数据显然需要由解析代码忽略或具体处理, 但是,它实际上不允许这样的评论, 但是,作为数据中的名称/价值对之一,通过一个评论肯定行得通,

简逊档案不应该包含传统意义上的评论。 它应该只是数据。

详情请查看json网站。