When using jquery ajax with data that contains array, getting the parameter name with [] in the end

Question

$.ajax({ url:"SomeURL", data: { fields : ["field1", "field2"], }, success: function(data) { } });

Getting this in the server:

name = fields[] , VALUE = field1 name = fields[] , VALUE = field2

(note the brackets)

Is that a bug? (This starting to happen after I upgraded to 1.5)

Thanx

I'm afraid I don't quite understand your question - Where in the "server" are you seeing that? and what is processing the AJAX request? — Barrie Reader
– Barrie Reader, Commented Feb 22, 2011 at 16:36
The server is tomcat apache and the "Getting this in the server" part represent the name and value of the parameters that are send with the requests. — Rotem
– Rotem, Commented Feb 23, 2011 at 8:12

Felix Kling · Accepted Answer · 2011-02-22 16:42:51Z

7

It is not a bug, the serialization changed (but already in jQuery 1.4). Have a look at the traditional option:

traditional Boolean
Set this to true if you wish to use the traditional style of param serialization.

And from jQuery.param() (also have a look at the example):

As of jQuery 1.4, the $.param() method serializes deep objects recursively to accommodate modern scripting languages and frameworks such as PHP and Ruby on Rails. You can disable this functionality globally by setting jQuery.ajaxSettings.traditional = true;.

edited Feb 22, 2011 at 16:42

answered Feb 22, 2011 at 16:37

Felix Kling

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4 Comments

Rotem Over a year ago

I already looked at the traditional option and still I'm getting the brackets in the end of the parameter's name. Do you know of a way of getting the parameter name without brackets?

Rotem Over a year ago

I just rechecked my code and it turns out I put the traditional in the wrong place. So thank you for your help and sorry for wasting your time.

hippietrail Over a year ago

Is there a way to also set traditional when using getJSON() rather than ajax()?

Felix Kling Over a year ago

@hippietrail: As the last sentence in the quoted documentation says, you can set jQuery.ajaxSettings.traditional = true;. Or instead of passing the object directly to getJSON, you can pass the result of $.param(obj, true).

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