JSON.parse string invalid character issue

Question

I am not able to figure out what is the problem with JSON in the following code.

This is working fine:

var a = JSON.parse('[{"label":"not applicable"},{"label":"see items"},{"label":"40 days"},{"label":"suntest"}]');

But this throws an exception, "Invalid Character" :

var b = JSON.parse('[{"label":"234"},{"label":"Sunny AG, Sunny Me- Be Cars, Ben., Bu 60, DE 71059, Sind, Discharge p no. 9711\r\n"},{"label":"C207346"}]');

While debugging I copied above runtime code. Actual code is in C# MVC as:

var a= JSON.parse('@Html.Raw(Json.Encode(Model.ShipToAddressCodeList))');

Keep in mind, apostrophe in C# are char, not strings.

spatbord
– spatbord

2016-11-18 08:17:26 +00:00
Commented Nov 18, 2016 at 8:17 — spatbord
– spatbord, Commented Nov 18, 2016 at 8:17

Joe · Accepted Answer · 2016-11-18 08:20:19Z

6

You need to escape the \r\n. JavaScript interprets the \'s in \r\n as escape characters, but really they are part of the string and should stay. Adding another \ in front of each \ fixes it, by escaping the escape character so the JSON parser treats it literally:

var b = JSON.parse('[{"label":"234"},{"label":"Sunny AG, Sunny Me- Be Cars, Ben., Bu 60, DE 71059, Sind, Discharge p no. 9711\\r\\n"},{"label":"C207346"}]');

edited Nov 18, 2016 at 8:20

answered Nov 18, 2016 at 8:15

Joe

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2 Comments

devgal Over a year ago

Thanks @Joe for quick reply and help....you have also removed Hyphen(-) from the string between "Me Be". Should I need to remove that also?

LinuxDisciple Over a year ago

C# gives the non-literal interpretation to "\n" here, not JavaScript. You can tell because there's no JavaScript here and yet you still have the problem.

Shaun Parsons · Accepted Answer · 2016-11-18 08:16:36Z

1

You need to escape your \r\n as \\r\\n

var b = JSON.parse('[{"label":"234"},{"label":"Sunny AG, Sunny Me- Be Cars, Ben., Bu 60, DE 71059, Sind, Discharge p no. 9711\\r\\n"},{"label":"C207346"}]');

answered Nov 18, 2016 at 8:16

Shaun Parsons

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