javascript + jquery ajax : conditional "data" element

Question

I would like to create a function around an ajax call so that I can re-use it. But I'm having trouble populating the data: ({ … }) part of it based on conditions (via a switch).

var d = {};
function lookup (what,etat,compt,vile,zip) {
    switch(what) {
        case "cou_mun":
            d: ({
                lookup: "county",
                state: etat
            })
            break;
        case "city":
            d: ({
                lookup: "city",
                state: etat,
                county: compt
            })
            break;
        case "zipcode":
            d: ({
                lookup: "zipcode",
                state: etat,
                county: compt,
                city: vile
            })
            break;
        default:break;
    }
    $.ajax({
        url: "socioGeo_envnLookup.php",
        type: "POST",
        data: d,
            //lookup: "county", //"county" or "city" or "zipcode"
            //state: etat
            //county: cou_mun,
            //city: city,
        success: function(what,data) {
            $('select[name="'+what+'"]').html(data);
        }
    }); //$.ajax
} //lookup()

And then I would call it like lookup("city",state,county);

IE complains when I try to make an ajax call that sends undefined variables, so I want to set data: ({ … }) dynamically.

You have to assign a value to d which is done by the assignment operator =. Also make sure that you define d locally in your function. — Felix Kling
– Felix Kling, Commented Mar 2, 2012 at 19:07
@FelixKling Do you know why what in success: as the value that should be in data? I did alert('what = '+what+'\n'+'data = '+data.toSource); inside of success and what = the html that should be in data and data = function toSource() { [native code] } — Jakob Jingleheimer
– Jakob Jingleheimer, Commented Mar 2, 2012 at 20:18

James Montagne · Accepted Answer · 2012-03-02 19:07:52Z

4

d: ({
            lookup: "county",
            state: etat
        })

Should be

d = {
        lookup: "county",
        state: etat
    };

answered Mar 2, 2012 at 19:07

James Montagne

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5 Comments

Jakob Jingleheimer Over a year ago

ah, that does help. Do you know why what in success: as the value that should be in data? I did alert('what = '+what+'\n'+'data = '+data.toSource); inside of success and what = the html that should be in data and data = function toSource() { [native code] }

James Montagne Over a year ago

success has the following signature: success(data, textStatus, jqXHR). The first parameter is the data, the 2nd is the status. That is why what is the data. It doesn't matter what you name that parameter, jquery will pass the data as the first parameter.

Jakob Jingleheimer Over a year ago

Ah. Okay. How do I pass what to success so I can load the data into a specified select?

James Montagne Over a year ago

You don't have to pass it, just use it. It will be accessible inside of the success function.

Jakob Jingleheimer Over a year ago

Ohh, that's unexpected. Thanks! I'll try when I have server-access on Monday :)

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