SyntaxError: JSON Parse error: Unexpected EOF

Question

I have the following line of code:

data = jQuery.parseJSON(data);

Which is creating the following error...

SyntaxError: JSON Parse error: Unexpected EOF

I can't work out how to identify what's causing the error though.

Any ideas?

Here's the data...

{
    "element_type": "paint",
    "edit_element_id": "2117",
    "paint_id": "15",
    "paint_editable_data": "zwibbler3.[{\"id\":0,\"type\":\"GroupNode\",\"fillStyle\":\"#cccccc\",\"strokeStyle\":\"#000000\",\"lineWidth\":2,\"shadow\":false,\"matrix\":[1,0,0,1,0,0],\"layer\":\"default\"},{\"id\":1,\"type\":\"PageNode\",\"parent\":0,\"fillStyle\":\"#cccccc\",\"strokeStyle\":\"#000000\",\"lineWidth\":2,\"shadow\":false,\"matrix\":[1,0,0,1,0,0],\"layer\":\"default\"},{\"id\":2,\"type\":\"BrushNode\",\"parent\":1,\"fillStyle\":\"#cccccc\",\"strokeStyle\":\"#000000\",\"lineWidth\":10,\"shadow\":false,\"matrix\":[1,0,0,1,0,0],\"layer\":\"default\",\"points\":[17,21,17,22,17,24,17,28,18,34,37,55,49,59,70,61,89,56,92,55,93,54]},{\"id\":3,\"type\":\"PathNode\",\"parent\":1,\"fillStyle\":\"#e0e0e0\",\"strokeStyle\":\"#000000\",\"lineWidth\":2,\"shadow\":false,\"matrix\":[1,0,0,1,-14,-85],\"layer\":\"default\",\"textFillStyle\":\"#000000\",\"fontName\":\"Arial\",\"fontSize\":20,\"dashes\":\"\",\"smoothness\":0.3,\"sloppiness\":0,\"closed\":true,\"arrowSize\":0,\"arrowStyle\":\"simple\",\"doubleArrow\":false,\"text\":\"\",\"roundRadius\":0,\"commands\":[0,150,100,6,200,150,200,100,6,150,200,200,200,6,100,150,100,200,6,150,100,100,100,7],\"seed\":36934}]",
    "paint_image_data": "data:image/png;base64,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"
}

Is it the size that's the problem maybe?

Answer 1

It looks like you are trying to convert a text string into a JSON data object.

You should probably be doing the following:

• instead of using jQuery.parseJSON(data), rather just use JSON.parse(data).
• The error you mentioned indicates you are passing in an empty string "" as your value of data. So check the value that is being passed in to the parse method.
• The data object you mentioned that you are passing in will always result in an error since it's already in a JSON format.

The parse method is intended to do the following conversion.

JSON.parse("{\"hello\":\"world\"}") returns {hello:'world'}

If you are trying to convert in an object into a string, you can try this:

JSON.stringify({hello:'world'}) returns "{\"hello\":\"world\"}"