SyntaxError: JSON.parse: JSON 第 1 行第 2 列的意外字符

Question

I need to append this div to another div , but it give me this error :

SyntaxError: JSON.parse: unexpected character at line 1 column 2 of the JSON data

This is my javascript code:

var str = {'message': message,'text': text};
$.ajax({
    type: "POST",
    url: "api/reply",
    data: str,
    dataType: "json",
    cache: false,
    success: function(response)
    {
        var respons = jQuery.parseJSON(response);
        var type = respons.status
        if (type == 'success') {
            $("<div></div>").html(respons.message).appendTo("#messages");
        }
        else
        {
            toastr.error(respons.message)
        }
    }
})

Answer 1

Simply change

var respons = jQuery.parseJSON(response);

to

var respons = response;

Explanation:

If the configuration of your AJAX call is having dataType: json you'll get a JavaScript object so it's no longer necessary to use JSON.parse().

Answer 2

这是解析 JSON 的一种骇人听闻的非正统方式，但是如果您仍然想从 AJAX 调用中使用JSON.parse()或者只是在已经解析且不是字符串的 JSON 上使用，您可以使用JSON.stringify()里面：

var respons = JSON.parse(JSON.stringify(response));

Answer 3

问题是您不是在解析字符串，而是在解析已解析的对象。

Answer 4

the values in your object seem to be undefined. change var str = {'message': message,'text': text}; to var str = {message: 'message',text: 'text'};