JavaScript 内部对象键带有带有空格的字符串。？

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已关闭 6 年前。

我有一个以下格式的 json 对象，并尝试检索键“krishna kk”的等级，这给了我一个 Uncaught SyntaxError: Unexpected token [错误。任何人都可以帮助理解如何获取键名称中包含空格的内部对象数据。

[
    {"studentinfo": [
            {
               "rama nathan": {
                    "grade": "1",
                    "roleno": "9",
                    "score": 9
                }
            },
            {
                "krishna kk": {
                    "grade": "3",
                    "roleno": "9",
                    "score": 4
                }
            },
            {
                "john Doe": {
                   "grade": "2",
                    "roleno": "5",
                    "score": 7
                }
            }
        ],
    }
]

我的代码如下:

var stugrade = studentobject["0"].studentinfo["0"].[rama nathan].grade;

Answer 1

你可以像这样执行

var stugrade = studentobject[0].studentinfo[0]['rama nathan']['grade'];