jquery javascript

jquery.js

/*Check jQuery is defined*/
> typeof jQuery
> window.jQuery




/********************************************
 * jquery ajax progressbar
 ********************************************/
function GetProgress() {
    $.ajax({
        url: "percentage.php",
        success: function (result) {
            console.log(result);
            var pers = result;
            $("#progressbar").progressbar("value", pers.value);
            if (pers.value > 0) {
                isDone = true;
            } else {
                setTimeout(GetProgress, 2000);
            }
        }
    });
};
jQuery(function () {
    //initialize the plugin
    $("#progressbar").progressbar();
    GetProgress();
})

/***************************************************************
 * How to select the first element in the dropdown using jquery?
 ***************************************************************/
$('select#cities option:first-child').attr("selected", "selected");

var myDDL = $('myID');
myDDL[0].selectedIndex = 0;

$("#cities").val($("#cities option:first").val());

$("#target")[0].selectedIndex = 0;


/********************************************
 * Selectbox reset
 ********************************************/
$("#target").prop("selectedIndex", 0);

/* Work in chrome, firefox */
$("#cities").val(null);

/* Recorrer un li */
$( "#secondary > ul > li" ).each(function( index ) {
	if($( this ).children().length == 0) {
		$(this).remove();
	}
});

/*
http://www.456bereastreet.com/archive/200704/how_to_prevent_html_tables_from_becoming_too_wide/
http://api.jquery.com/category/selectors/
*/