Inject callback function in the JSON string in jquery ajax call

Question

I have jquery ajax call which will go to a .js file and returns JSON

var validate = function () {
    alert('test string');
}

$.ajax({
        url: "JS/JQB/SampleData/Filters.js",
        async:false,
        success: InitailiseJQB
    });

Filters.js file contains below JSON,

  [{
        "id": "Group",
        "filters": [{
            "id": "49be7d78-4dcf-38ab-3733-b4108701f1",            
            "validation": {
                "callback": validate
            }
        }]
}]

in the above JSON validate is the javascript function but the problem is when i am requesting for the JSON using ajax call, it is throwing run time error called JavaScript runtime error: Invalid character

That's not valid JSON. The right-hand side of a JSON property clause can be a string, a number, a JSON array, a JSON object, true, false, or null. — Pointy
– Pointy, Commented Aug 6, 2015 at 18:38
@Pointy but if i remove the ajax call and put it in a variable then it is replacing the validate with the function I have given, and every thing working fine. — Vallabha
– Vallabha, Commented Aug 6, 2015 at 18:41
You could add the parameter datatype: "JSON" as you are requesting JSON from your script — fcreav
– fcreav, Commented Aug 6, 2015 at 19:08
Try your script with some known valid JSON and see if it works. You will find plenty on here. — fcreav
– fcreav, Commented Aug 6, 2015 at 19:17
@user1655222 One option would be to respond with the name (string) of the function -- { "callback": "validate" }. A simple way to reference a function from that name is to store it as a method. Example: jsfiddle.net/xtz9w6k5 — Jonathan Lonowski
– Jonathan Lonowski, Commented Aug 7, 2015 at 2:53

uncleoptimus · Accepted Answer · 2015-08-06 19:17:34Z

0

On success, are you sure you mean to call:

success: InitailiseJQB

There may be an accidental spelling error there.

answered Aug 6, 2015 at 19:17

uncleoptimus

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1 Comment

Vallabha Over a year ago

as i said it is working fine if i place a string in validate instead of function

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