javascript - 我不断收到“ Uncaught SyntaxError：意外令牌o”(I keep getting “Uncaught SyntaxError: Unexpected token o”)

Question

I'm trying to learn some html/css/javascript, so I'm writing myself a teaching project.(我正在尝试学习一些html / css / javascript，因此我正在为自己编写一个教学项目。)

The idea was to have some vocabulary contained in a json file which would then be loaded into a table.(想法是在json文件中包含一些词汇，然后将其加载到表中。)

I managed to load the file in and print out one of its values, after which I began writing the code to load the values into the table.(我设法加载文件并打印出其中一个值，然后开始编写代码以将值加载到表中。)

After doing that I started getting an error, so I removed all the code I had written, leaving me with only one line (the same line that had worked before) ... only the error is still there.(完成此操作后，我开始出现错误，因此删除了我编写的所有代码，只剩下一行（以前工作过的同一行）……只有错误仍然存??在。)

The error is as follows:(错误如下：)

Uncaught SyntaxError: Unexpected token o
(anonymous function)script.js:10
jQuery.Callbacks.firejquery-1.7.js:1064
jQuery.Callbacks.self.fireWithjquery-1.7.js:1182
donejquery-1.7.js:7454
jQuery.ajaxTransport.send.callback

My javascript code is contained in a separate file and is simply this:(我的JavaScript代码包含在一个单独的文件中，就是这样：)

function loadPageIntoDiv(){
    document.getElementById("wokabWeeks").style.display = "block";
}

function loadWokab(){
    //also tried getJSON which threw the same error
    jQuery.get('wokab.json', function(data) {
        var glacier = JSON.parse(data);
    });
}

And my JSON file just has the following right now:(我的JSON文件现在具有以下内容：)

[
    {
        "english": "bag",
        "kana": "kaban",
        "kanji": "K"
    },

    {
        "english": "glasses",
        "kana": "megane",
        "kanji": "M"
    }
]

Now the error is reported in line 11 which is the var glacier = JSON.parse(data);(现在，该错误在第11行中报告，即var glacier = JSON.parse(data);)

line.(线。)

When I remove the json file I get the error: "GET http://.../wokab.json 404 (Not Found)" so I know it's loading it (or at least trying to).(当我删除json文件时，出现错误：“ GET http：//.../wokab.json 404（未找到）”，因此我知道它正在加载（或至少尝试加载）。)

  ask by Bjorninn translate from so

Answer 1

Looks like jQuery takes a guess about the datatype.(看起来jQuery猜测了数据类型。)

It does the JSON parsing even though you're not calling getJSON()-- then when you try to call JSON.parse() on an object, you're getting the error.(即使您没有调用getJSON（），它也会进行JSON解析-然后，当您尝试在对象上调用JSON.parse（）时，就会收到错误消息。)

Further explanation can be found in Aditya Mittal's answer .(进一步的解释可以在Aditya Mittal的答案中找到 。)