Get the columns names of a table by query using node.js and socket.io

as i'm getting the result of the following, if i'll only use the queryResult[i], the output will be:

object Object
object Object
object Object
object Object
object Object
object Object

as expected (i have 6 columns in my table)

so what should come after the dot in order to get the names of the columns?

var newQuery = 'SHOW COLUMNS FROM `my_data`.my_table;';
socket.emit('new query', newQuery);
var html='';

socket.on('query results', function(queryResult){

    for (i = 0; i < queryResult.length; i++){

        html += '<section id="resultTitle"><a href="#">' + queryResult[i].///HERE/// + '</a></section>';
        $('#searchResults').html(html);

    } 
});