How do you send an array as part of an (jquery) ajax request

Question

I tried to send an array as part of an ajax request like this:

var query = [];
// in between I add some values to \'query\'
$.ajax({
    url: \"MyServlet\", 
            


        

Answer 1

Just try to send the data as name/value pair (which is expected). Like

var query = ["data1","data2"];
// in between I add some values to 'query'
$.ajax({
    url: "MyServlet", 
    data: {'query' : query},
    success: function(noOfResults) { 
    alert(noOfResults); 
    }
  });
}

You should get the data at server side like this

query => Array ( [0] => data1 [1] => data2 )

As per the jQuery documentation for data setting of jQuery.Ajax() method

If value is an Array, jQuery serializes multiple values with same key based on the value of the traditional setting