I have seen return type json , application/json while working with ajax. I have tried both and found the same result. Please anyone let me know the difference between these two.
datatype: 'json'
datatype: 'application/json'
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1Possible duplicate of [$.ajax - dataType](http://stackoverflow.com/questions/2722750/ajax-datatype) – stevenelberger Sep 14 '16 at 04:50
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You should read about `MIME types`, check out this [list](https://github.com/h5bp/server-configs-nginx/blob/master/mime.types) – Prateek Gupta Sep 14 '16 at 04:55
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JQuery's datatype argument on the $.ajax method accepts either the name of a format (like json or xml) which jQuery knows how to parse, or a MIME type (like application/json), which jQuery can map back to a parseable type. In this case, jQuery is mapping application/json to json for you, because it's a common format.
The datatype argument is not what MIME type you expect from the server, but how jquery should parse the response.
The documentation for jQuery.ajax says:
dataType (default: Intelligent Guess (xml, json, script, or html))
Type: String
The type of data that you're expecting back from the server.
[...]
"json": Evaluates the response as JSON and returns a JavaScript object.
