Question

I am submitting a form like so:

formdata = $("#app_form").serialize()
formdata['apps'] = apps
hash = { type: "POST", url: "create_all", data: formdata }
$.ajax(hash)

The formdata posts, but the line:

formdata['apps'] = apps

is completely ignored. I can’t understand how Coffeescript and Javascript can just ignore a line completely. Very interesting.

The apps hash has the following structure:

{ "a" => { "1", "2", "3" },
  "b" => { "4", "5", "6" },
  ...
  "n" => { "x", "y", "z" } }

If:

formdata['apps'] = apps

doesn’t work after doing:

formdata = $("#app_form").serialize()

then how can I add the apps hash to the formdata hash prior to submission?

Answer 1

.serialize() returns a query string not an object, so to add a argument to the query string use string concatenation

formdata += '&apps=' + encodeURIComponent(apps);

assuming apps is a string.