Unxpected token : for JSON string in Javascript

Question

I have a json file which is generated by Java component and I trying to parse that json file via Javascript. But if I use this code:

var foo = JSON.parse('js/test.json');

I am getting this error:

Uncaught SyntaxError: Unexpected token :

Strange is I am generating this JSON via JSONObject which of-course produces valid JSON string. I tried with few online validators, and all of them are showing as a valid json. But javascript is throwing me this error.

Can anyone guide me to resolve this error? I searched many questions on SO but no luck. I posted my json here

Is 'js/test.json' a URL? Because that doesn't look like a valid JSON expression to me. — Elliott Frisch
– Elliott Frisch, Commented Nov 27, 2013 at 6:28
@ElliottFrisch, it's a JSON file under js folder in web app. — Pradeep Simha
– Pradeep Simha, Commented Nov 27, 2013 at 6:29
@Xymostech, then how do I read that from file? Can you please guide me? — Pradeep Simha
– Pradeep Simha, Commented Nov 27, 2013 at 6:30

Elliott Frisch · Accepted Answer · 2013-11-27 06:32:42Z

1

JSON.parse parses JSON string expressions into javascript objects. I suggest you make an ajax call to js/test.json and then I think your parse will work.

answered Nov 27, 2013 at 6:32

Elliott Frisch

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user2587132 · Accepted Answer · 2013-11-27 06:46:11Z

0

Give this a try

var httpRequest;
if (window.XMLHttpRequest) {
httpRequest = new XMLHttpRequest();
} else if (window.ActiveXObject) { 
httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
}

httpRequest.onload = getJSON;
httpRequest.open('get', 'js/test.json', true);
httpRequest.responseType = "json";
httpRequest.send();


function getJSON(){var foo=httpRequest.response;}

answered Nov 27, 2013 at 6:46

user2587132

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