jQuery post() with serialize and extra data

Solution 1:

You can use serializeArray ^[docs] and add the additional data:

var data = $('#myForm').serializeArray();
data.push({name: 'wordlist', value: wordlist});

$.post("page.php", data);

Solution 2:

Try $.param

$.post("page.php",( $('#myForm').serialize()+'&'+$.param({ 'wordlist': wordlist })));

Solution 3:

An alternative solution, in case you are needing to do this on an ajax file upload:

var data = new FormData( $('#form')[0] ).append( 'name' , value );

OR even simpler.

$('form').on('submit',function(e){

    e.preventDefault();
    var data = new FormData( this ).append('name', value );

    // ... your ajax code here ...

    return false;

});