Tips for extracting JSON data with property values containing double quotes

Question

Tips for extracting JSON data with property values containing double quotes

When dealing with a json string containing a property value with a double quote, I encounter issues with parsing it.

For instance, if my object is { "Name" : "Six \" Pipe" }, attempting to parse it leads to an error message saying - Unexpected token P.

var str = '{ "Name" : "Six \" Pipe" }';
JSON.parse(str); //error
$.parseJSON(str); //error

The string is generated in a razor view as shown below -

 var str = new JavaScriptSerializer().Serialize(obj);

Subsequently, in JavaScript, I attempt to do the following

var obj = JSON.parse('@(Html.Raw(str))');

Is there a way to successfully parse such strings?

c#javascript json asp.net-mvc-4

Answer 1

Answer №1

It's essential to properly escape backslashes in JavaScript to ensure that your JSON remains valid. When using \", it will be converted to ", which could lead to incorrect JSON formatting. The blackslash is discarded by javascript according to this source.

To ensure the correctness of your string, consider the following example-

var str = '{ "Name" : "Six \\" Pipe" }';
JSON.parse(str); //works

Edit:

If you need to include a literal backslash in your JavaScript code, remember to escape it. One approach is to double-escape the key's value when creating the string. Another option would be to html encode the strings (key values), such as using " instead of \". This can easily be done with .Net, and services like HttpServerUtility.HtmlEncode could assist. Then on the JavaScript side, parsing should proceed smoothly - see this example on jsFiddle.

Answer 2

It's essential to properly escape backslashes in JavaScript to ensure that your JSON remains valid. When using \", it will be converted to ", which could lead to incorrect JSON formatting. The blackslash is discarded by javascript according to this source.

To ensure the correctness of your string, consider the following example-

var str = '{ "Name" : "Six \\" Pipe" }';
JSON.parse(str); //works

Edit:

If you need to include a literal backslash in your JavaScript code, remember to escape it. One approach is to double-escape the key's value when creating the string. Another option would be to html encode the strings (key values), such as using " instead of \". This can easily be done with .Net, and services like HttpServerUtility.HtmlEncode could assist. Then on the JavaScript side, parsing should proceed smoothly - see this example on jsFiddle.

Answer 3

Answer №2

Dealing with quotes can be a frustrating issue, but I eventually found a solution after spending a lot of time on it.

@{
  var serializer = new System.Web.Script.Serialization.JavaScriptSerializer();
  var obj = new {name = "\"Name1\""};
  var objJson = serializer.Serialize(obj);
}
<script>
  var jsObject = @Html.Raw(objJson);
</script>

By using JSON as the JavaScript object directly without any parsing, the HTML result looks like:

<script>
  var jsObject = {"name":"\"Name1\""} ;
</script>

This output is correct JavaScript syntax. Hopefully, this solution will be helpful for someone facing the same issue.

Answer 4

Dealing with quotes can be a frustrating issue, but I eventually found a solution after spending a lot of time on it.

@{
  var serializer = new System.Web.Script.Serialization.JavaScriptSerializer();
  var obj = new {name = "\"Name1\""};
  var objJson = serializer.Serialize(obj);
}
<script>
  var jsObject = @Html.Raw(objJson);
</script>

By using JSON as the JavaScript object directly without any parsing, the HTML result looks like:

<script>
  var jsObject = {"name":"\"Name1\""} ;
</script>

This output is correct JavaScript syntax. Hopefully, this solution will be helpful for someone facing the same issue.

Tips for extracting JSON data with property values containing double quotes

Answer №1

Answer №2

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