how to add variable value to array in jquery code example

Example 1: javascript append element to array

var colors= ["red","blue"];
	colors.push("yellow");

Example 2: jquery add element to array

var ids = [];

    $(document).ready(function($) {
    var $div = $("<div id='hexCodes'></div>").appendTo(document.body), code;
    $(".color_cell").each(function() {
        code = $(this).attr('id');
        ids.push(code);
        $div.append(code + "<br />");
    });



});