Coldfusion and Ajax work great together. Long past are the days of pages refreshing to grab data.

The following is a simple cfc that returns some user info in json format with a type of query.

---

<cfcomponent>
<cffunction name="getUsers" access="remote" returnformat="json" returntype="query">

<cfquery name="data" datasource="ds">
select username, address, birthday
from employees;
</cfquery>

<cfreturn data/>

</cffunction>
</cfcomponent>

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The next step is to grab the column information passed back from Coldfusion and then map it to the data object supplied.

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$.ajax({
type: "GET",
url: "cfc/data.cfc?method=data",
returnformat: "json",
error: function(res) {alert('some error');},
success: function(res) {

    var sampleArray = [];
    var resultSet = $.parseJSON(res);
    var columnMapping = {};

    //add our column values to our mapping object
    for (var i = 0; i < resultSet.COLUMNS.length; i++) {
        columnMapping[resultSet.COLUMNS[i]] = i;
    }

    //loop through the data object and get the corresponding value as it maps to the column.
    //for this example, we will add the query row to an array and then dump the output.
    $.each(resultSet.DATA, function (index, item) {

        //Coldfusion returns fields in caps.
        sampleArray.push({
            username: item[columnMapping.USERNAME],
            address: item[columnMapping.ADDRESS],
            birthday: item[columnMapping.BIRTHDAY]
        });

    });
    console.log(sampleArray);
    }
});

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That's it! You now have an array of objects from coldfusion.