Description

jQuery.param returns &undefined= as part of the string when looping over a empty array element

Given the following code:

    var condition = false;
    var myArray = [
        { name: 'name1', value: 'value1' },
        condition && { name: 'name2', value: 'value2' },
        { name: 'name3', value: 'value3' },
    ];

    var serialized  = $.param(myArray);
   // output= 'name1=value1&undefined=&name3=value3'

• What do you expect to happen?
  The returned string does not include '&undefined='

• What actually happens?
  The returned string includes '&undefined='

Link to test case

http://jsfiddle.net/vedghafn/

Is this desired behavior? The documentation page on jQuery.param() does not mention this. A simple solution would be to check if this.name actually exists before calling add() in serialize.js