how to get form data with jquery? code example

Example 1: jquery get form data

$('form').serializeArray()
// gives 
// 	[ {"name":"foo","value":"1"},
//  {"name":"bar","value":"xxx"},
//  {"name":"this","value":"hi"} ]


// or 

$('form').serialize() // gives : "foo=1&bar=xxx&this=hi"

Example 2: jquery form data

var fd = new FormData();    
fd.append( 'file', input.files[0] );

$.ajax({
  url: 'http://example.com/script.php',
  data: fd,
  processData: false,
  contentType: false,
  type: 'POST',
  success: function(data){
    alert(data);
  }
});