[javascript] jQuery post() with serialize and extra data

In new version of jquery, could done it via following steps:

  • get param array via serializeArray()
  • call push() or similar methods to add additional params to the array,
  • call $.param(arr) to get serialized string, which could be used as jquery ajax's data param.

Example code:

var paramArr = $("#loginForm").serializeArray();
paramArr.push( {name:'size', value:7} );
$.post("rest/account/login", $.param(paramArr), function(result) {
    // ...
}