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JavaScript - Unexpected Behavior Of Object
Ok, so I wanted to use the following object to copy the contents of the Report array at index [file][entry].
Code: Selected = {
fileIndex : file,
entryIndex : entry,
Entry : Report[file][entry]
}
This was done so that the user may perform modifications to the entry without updating the entry until I have run validation on the input. Then I used Code: if(valid) Report[Selected.fileIndex][Selected.entryIndex] = Selected.Entry to finish up. I noticed that the Report array was getting the new input even when I didn't validate. I used the following to view all the contents of the Report Array in real time Code: window.setInterval('SHOW_ARRAY();',200);
Report=[];
function SHOW_ARRAY(){
HTML('ReportDebug','') //Reset "ReportDebug" HTML element
for(var t in Report){
for(var y in Report[t]){
for(var u in Report[t][y]){
HTML('ReportDebug','<span style="position:relative ; border:2px solid black">'+Report[t][y][u]+'</span>',1) // last argument signifies to append HTML element
}
}
HTML('ReportDebug','<br />',1)
}
}
And what I discovered was that whenever I stored values in Selected.Entry the Report array would update with those values! This is my first attempt to create an object in this fashion, so my only guess is that Selected.Entry is not independent from Report[file][entry], but instead some kind of pointer... Where have I gone wrong, and how can I accomplish my goal? Let me know if my code samples were too brief. Similar TutorialsHi, every time I try and alert: [ { number:0, secondnumber:0 }, { number:2, secondnumber:1 }, { number:1, secondnumber:2 } ] it just shows [object object], [object object], [object object]. Why is this and what can I do to make the record be shown as it is above in an alert? Thanks. I created a method for displaying an object's properties: Code: renderfunction = false;
function showProperty (object, property)
{
document.write ('<td class="type">' + (typeof object[property]) + '</td>'
+ '<td class="name">' + property + '</td>');
document.writeln('<td class="value">' +
(
(typeof object[property] != 'function')
? object[property]
:(
(property != 'showProperties')
? (
renderfunction
? object[property]()
: ('<span class="self">NOT RENDERED</span>')
)
: ('<span class="self">THIS</span>')
)
)
+ '</td>');
document.writeln('<td class="hasOwnProperty" >'
+ (
object.hasOwnProperty(property)
? "Local"
: "Inherited"
)
+ '</td>');
if (typeof object[property] == 'function')
{
document.writeln ('<td class="function">' + object[property] + '</td>');
}
else
{
document.writeln ('<td class="function"> </td>');
}
}
As long as renderfunction = false, the object is fine coming out of this function. However, if I change renderfunction to true, all my properties become undefined. Why isn't this working as I expect it to? How should I fix it? Thanks in advance, -Brian. I can't get any info from Firebug except that one line, uncaught exception [object Object]. The code fully worked, then I needed to make it dynamically create Sortables from the scriptaculous library based on how many X were in a table in my database, which I've done, and I'm thinking it may be a simple slight parse error of some type, I'm not too good with Javascript, because now my script barely works. I've double checked the script's source code, the PHP variables are exactly what they should be. Code: print<<<HERE
Sortable.create('sortlist$box', { tag: 'img', overlap:'horizontal',constraint:false, containment: $list, dropOnEmpty: true,
onChange: function(item) {
var list = Sortable.options(item).element;
if(changeEffect) changeEffect.cancel();
changeEffect = new Effect.Highlight('changeNotification', {restoreColor:"transparent" });
},
onDrop: function(item) {
var thing=Sortable.options(item).element.identify();
var anchors = document.getElementById(thing).childNodes.length-2;
if(anchors > 20){
alert('This box had 20 creatures in it already, your last action has not been saved.');
window.location.reload();
}
else{
new Ajax.Request("saveImageOrder.php", {
method: "post",
parameters: { data: Sortable.serialize("sortlist$box") }
});
}
}
});
HERE;
$box++;
}
?>
});
</script>
if you solve this I'll send ya $10 via paypal I'm writing a program that involves a network of interconnected nodes (or simply objects in my example below). It depends on being able to access properties of an object's linked objects (a bit oddly worded, sorry)... Problem is I'm not sure how to properly access those properties... see below please. <script> //This is an example of a problem im having in my own code... //I want to access the name of the object within the links array wintin the object... var objA = {name: "Object A", links: [objB, objC]}; var objB = {name: "Object B", links: [objC, objD, objE]}; var objC = {name: "Object C", links: [objB]}; var objD = {name: "Object D", links: [objE]}; var objE = {name: "Object E", links: [objD]}; //ex: I want to access the name of Object A's first link... console.log(objA.links[0].name); </script> I'm hoping to get "Object B"... But instead I get: TypeError: Result of expression 'objA.links[0]' [undefined] is not an object. Is there another way around this? Any thoughts are appreciated. Hi all, I'm stumped on finding a way in javascript to create an object factory whose instances are also object factories. In short I want something like that below, but no joy ... any clues? Code: function createClass () {
return new createClass()
function createClass() {
return new createInstance ()
function createInstance () {
//Default properties, values and methods which might later be extended
}
}
}
var createDoor = createClass();
var door1 = createDoor();
var door2 = createDoor();
var createChair = createClass();
var chair1 = createChair ();
var chair2 = createChair ();
Ignore post (if mod, please delete)
Hello together! I generate html code with jsp. In that jsp there a several framesets and frames. And yes i know, frames are not really up to date but it's an old program and i have to deal with it now. Anyway, in the top frameset i have an onload attribute like onload="load()". In the function load i want to access the Element.prototype object. But unfortunately typeof Element gives me "undefined". So i looked a little deeper and found that window.toString() gives me "[object]" and not as expected "[object window]" so somehow my window doesn't know that its construcor is Window. window.construcor is "undefined" as well. And i don't have access to the Element object. I really don't know where the error could be. When the page is loaded and i access the same window over the console, then everything is right. But in my function a can't get access to the objects i need. I also don't know what part of the code could be useful to post here, but maybe someone had a similar problem before? i should say that this problem only occurs in IE8. In IE9 it works perfectly. Has anyone any idea?? I have been testing regex test string to match the following pattern (- <any number with/without . decimal point>) ( -[#[.#]] ) here is the code that works the best: Code: var testStr = '99999+((-25.533) - 5)/99*(-25.533)';
var negValTestStr = new RegExp('\\(\-{1}[0-9]*\.?[0-9]*\\)', 'g');
var test = testStr.match(negValTestStr)
alert(test);
The question is: Why does it only work when the open and close parenthesis are double escaped: '\\(' and '\\)' When I use one backslash to escape, it will find -25.533, -5 and -25.533 With two backslashes for escape sequence: (-25.533), (-25.533) Also, I have to escape the - to get just one -. If I do not escape the -, -?; which should read - {0, 1} will match --# without escaping - Thanks for thoughts on this JK Hi everyone Im new here nice forum Hope someone can help out with my problem http://www.testingremote.ucoz.com/ When you click on anything other than home on the nav bar it messes up the appear/fade behavior that I added with dreamweaver any solutions ? Please help ! Hi, I am trying to figure out how the get the featured area at http://blueoceanportfolios.com to link to webpages rather than displaying it within the featured box on the left . This area is using JS file to display the videos on content in the featured box when different items on the menu are clicked, here is the working example : http://www.blueoceanportfolios.com/company/ Okay , The problem: Loading a new webpage rather than displaying the content at featured box at http://blueoceanportfolios.com Tried solutions: linking to javascript functions like onclick="window.location="http://someplace.com";" etc but still the content loads up in the featured box , try clicking on 2) it displays http://www.codingforums.com rather than loading new page. Any suggestions Hello. Is there any way to get the variable name of an object from inside the object? E.g. PHP Code: function Bla(){ this.write = function(){ document.write(<objectname>); } } obj1 = new Bla(); obj1.write(); //Outputs obj1 Here is my script: PHP Code: function myTimer(seconds, obj){ this.seconds = seconds; this.obj = obj; this.startTimer = function(){ if(this.seconds>0){ this.seconds--; this.obj.innerHTML = this.seconds; this.timer = setTimeout("Timer.start()",1000); } } } Timer = new Timer(10, obj); Timer.startTimer(); Now the problem is that the variable that contains the object must be named "Timer". This way I cannot create new timer objects with different variable names I have tried: this.timer = setTimeout("this.start()",1000); but it doesn't work. That's why it would be good to detect the variable name and instead use something like this: this.timer = setTimeout(varname+".start()",1000); I would rather not have to pass the variable name through a parameter like this: Timer1 = new Timer(10, obj, "Timer1"); Thanks in advance. Quote: menu: function( a, b ) { $( b ).observe( 'click', function( event ) { event.stop(); if( $( a ).visible() ) { $( a ).hide(); $( b ).removeClassName( 'selected' ); document.stopObserving( 'click' ); } else { $( a ).show(); $( b ).addClassName( 'selected' ); document.observe( 'click', function( e ) { if( e.target.id != a && e.target.id != b && !Element.descendantOf( e.target, $( a ) ) ) { $( a ).hide(); $( b ).removeClassName( 'selected' ); document.stopObserving( 'click' ); } }); } }); $$( '#' + b + ' > a' ).each( function( element ) { element.observe( 'click', function( event ) { $( a ).hide(); $( b ).removeClassName( 'selected' ); document.stopObserving( 'click' ); }); }); } This work's perfrect accept when i use it with others on the menu it leaves the other ones open, how do i get it to close the open one when i open a new menu.. Thanks. I have an interval set that runs indefinitely (backgrounds switching) or until the viewer stops it. I've noticed that when I close a tab while it's running and revisit the page, it "doubles" the interval and the backgrounds get mixed up. Refreshing the page returns it to normal. Does anyone know how to fix this? I've tried clearing the interval with window.onunload and window.onbeforeunload. I'm thinking it has something to do with firefox not clearing its cache for the tab. I'll look into disabling that. Since it is not clear to me where this post should fit in the forum, I'm just posting it here. Is it possible to create a tracking code that would allow me to: (1) a) Find out the identity of visitors to a certain website (a website unrelated to me and the visitors did not visit my website) b) The identity of those who recently searched for a certain keywords and/or... (2) Find out what websites certain individuals have recently visited (or visiting in real-time)? I am attempting to implement a Close icon which responds to mouseover, mouseup, mousedown, and mouseout. The problem is that the first DIV I display, using this code, works as intended, i.e. all the button states work. I can close and reopen the same DIV and everything is still fine. If I open a second DIV, which uses the reuse code below, the button states do not appear, although the DIV will close properly. If I step through the debugger all of the state images load properly but do not appear. Once I have tried to use the button in the second DIV, all of the DIV's fail to display the button states but close properly. Additionally all of the pages where this is used are generated using XMLHttpRequest(). The DIV's using this are generated when the site loads and then shown and hidden as needed with their contents being generated via XMLHttpRequest(). Anyone have any ideas? The intent is to reuse the following in a number of DIV's: Code: rtn = "<div id='closepanel' class='closepanel'><img src='images/closebutup.png' name='closebut' width='20px' height='20px' border='0px' onmouseover=\"swapbuttonstate('closebut','over')\" onmouseout=\"swapbuttonstate('closebut','out')\" onmousedown=\"swapbuttonstate('closebut','down')\" onmouseup=\"closePanel('"+this.msDivid+"')\" ></div>";
On startup I preload the images using : Code: if (document.images) {
closebutup= new Image();
closebutup.src="images/closebutup.png";
closebutover= new Image();
closebutover.src="images/closebutover.png";
closebutdown=new Image();
closebutdown.src="images/closebutdown.png";
}
The swapbuttonstate function is defined as: Code: function swapbuttonstate(buttonname, state) {
switch(state) {
case "over":
if (document.images) {
butover=eval(buttonname + "over.src");
document[buttonname].src= butover;
}
break;
case "out":
case "up":
if (document.images) {
butup=eval(buttonname + "up.src");
document[buttonname].src= butup;
}
break;
case "down":
if (document.images) {
butdown=eval(buttonname + "down.src");
document[buttonname].src= butdown;
}
break;
}
}
and closePanel is defined as: Code: function closePanel(divid) {
document.getElementById(divid).style.display='none';
}
Any help would be greatly appreciated. Hi guys! I'm having trouble deciphering the javascript on my webpage www.laurahenderson.org is my website, and I'd like the nav bar to be closed when the site loads. Here is the code: Code: jQuery.noConflict(); jQuery(document).ready(function(){
//VAR SETUP
var rightBg = jQuery('#rightBg'),
boxStuff = jQuery('.boxStuff'),
bgControls = jQuery("#bgControls"),
nextImg = jQuery('#nextImg'),
prevImg = jQuery('#prevImg'),
blogNav = jQuery('#blogNav'),
navBox = jQuery("#navBox"),
navBoxa = jQuery("#navBox a"),
navHeight = navBox.height(),
firstImg = jQuery('.wrapperli:first-child'),
lastImg = jQuery('.wrapperli:last-child'),
//iPad,iPhone,iPod...
deviceAgent = navigator.userAgent.toLowerCase(),
iPhone = deviceAgent.match(/(iphone|ipod)/);
//CLOSE FUNCTION
function closeSesame(){
jQuery('.activeBox').fadeOut(600,function(){
navBox.animate({right:"0%",marginRight:"20px"},800).removeClass('openNav');
jQuery(".activeNav").removeClass('activeNav');
rightBg.animate({width:"0%"},800);//HIDE RIGHT BG
bgControls.fadeIn(600);
}).removeClass('activeBox');
}
//OPEN FUNCTION
function openSesame(){
navBox.addClass("openNav").animate({right:"50%",marginRight:"2px"},800);//ADD OPEN NAV
rightBg.animate({width:"50%"},800,function(){//SHOW RIGHT BG
jQuery('.activeBox').fadeIn(600);//ADD ACTIVE BOX & FADE IN
navBox.fadeIn(600);
});
bgControls.fadeOut(300);
}
//OPACITY STUFF
rightBg.css({opacity:".85"});
//REMOVE TITLE ATTRIBUTE
jQuery("#dropmenu a").removeAttr("title");
//MENU
jQuery("#dropmenu ul").css("display", "none"); // Opera Fix
jQuery("#dropmenu li").hover(function(){
jQuery(this).find('ul:first').show();
},function(){
jQuery(this).find('ul:first').hide();
});
jQuery("#dropmenu ul li ul").parent().children("a").prepend("<span style='float:right;'>›</span>");
//PRETTY PHOTO
jQuery("a[href$='jpg'],a[href$='png'],a[href$='gif']").not(".wrapperli a").attr({rel: "prettyPhoto"});
jQuery(".gallery-icon > a[href$='jpg'],.gallery-icon > a[href$='png'],.gallery-icon > a[href$='gif']").attr({rel: "prettyPhoto[pp_gal]"});
jQuery("a[rel^='prettyPhoto']").prettyPhoto({
animation_speed: 'normal', // fast/slow/normal
opacity: 0.35, // Value betwee 0 and 1
show_title: false, // true/false
allow_resize: true, // true/false
overlay_gallery: false,
counter_separator_label: ' of ', // The separator for the gallery counter 1 "of" 2
//theme: 'light_rounded', // light_rounded / dark_rounded / light_square / dark_square
hideflash: true, // Hides all the flash object on a page, set to TRUE if flash appears over prettyPhoto
modal: false // If set to true, only the close button will close the window
});
//WINDOW LOAD
jQuery(window).load(function(){
//REMOVE WIDTH AND HEIGHT ATTRIBUTES FROM IMAGES
jQuery('.attachment-full, .attachment-post-thumbnail, .attachment-gallery').removeAttr('height').removeAttr('width');
//LOAD MESH BG
jQuery('#mesh').fadeIn(600);
jQuery('#loading').fadeOut(600);
//IF GALLERY PAGE
if(jQuery('body').hasClass('page-template-page_gallery-php')){
navBox.fadeIn(600);
bgControls.fadeIn(600);
jQuery(".wrapperli:first-child a").click();
//IF NOT GALLERY PAGE
} else {
openSesame();
}
});
//FADE CRUMBS IN/OUT ON SCROLL
jQuery('#pageContent').scroll(function(){
if(jQuery('#pageContent').scrollTop()>150){
blogNav.fadeOut(300);
} else {
blogNav.fadeIn(300);
}
});
//NAV BOX STUFF
navBox.css({marginTop:"-"+navHeight/2+"px"});
boxStuff.css({marginTop:"-"+navHeight/2+"px"});
//NAV BUTTON CLICK
navBoxa.click(function(){
//VAR SETUP
var thisBox = jQuery(this).attr('href');
//IF ACTIVE LINK, CLOSE STUFF
if(jQuery(this).hasClass('activeNav')){
closeSesame();
return false;
//IF NOT ACTIVE LINK
}else{
//IF CONTENT OPEN
if(navBox.hasClass("openNav")){
navBoxa.removeClass('activeNav');//REMOVE CURRENT ACTIVE NAV
jQuery(this).addClass('activeNav');//ADD NEW ACTIVE NAV
jQuery('.activeBox').removeClass('activeBox').fadeOut(300,function(){//REMOVE CURRENT ACTIVE BOX & FADE OUT
jQuery(thisBox).addClass('activeBox').fadeIn(300);//ADD NEW ACTIVE BOX & FADE IN
});
//IF CONTENT NOT OPEN
} else {
jQuery(this).addClass('activeNav');//ADD ACTIVE NAV
jQuery(thisBox).addClass('activeBox');
openSesame();
}
}
});
//CLICKING GALLERY IMG
jQuery(".wrapperli a").click(function(){
if(iPhone){
return false;
}else{
//GET HREF
var galleryHref = jQuery(this).attr('href'),
galleryTitle = jQuery(this).attr('title'),
imageInfo = jQuery('#imgInfo'),
itemNumber = jQuery(this).parent().index() + 1;
numberItems = jQuery('.wrapperli').length;
//CHANGE TITLE INFO
if(galleryTitle){
imageInfo.hide().html(galleryTitle + "  /  "+ itemNumber + " of " + numberItems).fadeIn(150);
} else {
imageInfo.hide();
}
//CHANGE CLASSES
jQuery(".wrapperli").not(this).removeClass('activeImg');
jQuery(this).parent().addClass('activeImg');
//IF MENU OPEN, CLOSE IT
if(navBox.hasClass("openNav")){ closeSesame(); }
//CHANGE BACKGROUND
jQuery.backstretch(galleryHref, {speed: 300});
return false;
}
});
//NEXT CONTROLS
nextImg.click(function(){
var activeImg = jQuery('.activeImg');
if(activeImg.length > 0){
if(activeImg.next().length > 0){
activeImg.removeClass('activeImg').next().addClass('activeImg').children().click();
} else {
activeImg.removeClass('activeImg');
firstImg.addClass('activeImg').children().click();
}
} else {
firstImg.addClass('activeImg').children().click();
}
return false;
});
//PREV CONTROLS
prevImg.click(function(){
var activeImg = jQuery('.activeImg');
if(activeImg.length > 0){
if(activeImg.prev().length > 0){
activeImg.removeClass('activeImg').prev().addClass('activeImg').children().click();
} else {
activeImg.removeClass('activeImg');
lastImg.addClass('activeImg').children().click();
}
} else {
firstImg.addClass('activeImg').children().click();
}
return false;
});
// Keyboard shortcuts
jQuery(document).keydown(function(e) {
var unicode = e.charCode ? e.charCode : e.keyCode;
if (unicode == 39) { nextImg.click();} // right arrow
else if (unicode == 37) {prevImg.click();} // left arrow
});
});
and I changed the open sesame to closed sesame here in the code Code: //IF CONTENT NOT OPEN
} else {
jQuery(this).addClass('activeNav');//ADD ACTIVE NAV
jQuery(thisBox).addClass('activeBox');
openSesame();
}
}
});
but now when the page loads the navbar wont show up at all. Any help/insight would be much appreciated! The code below is supposed to cancel the default form behavior when it finds certain info missing. Currently, however, in spite of detecting missing info it allows the form submission to continue. Anyone see what wrong? Thanks. Code: var DOM = YAHOO.util.Dom;
YAHOO.util.Event.onDOMReady(init);
function init() {
YAHOO.util.Event.addListener("contact_form", "submit", checkForm);
}
function checkForm() {
var fName = DOM.get('f_name');
var lName = DOM.get('l_name');
if (fName.value == "") {
DOM.get('f_name_error').innerHTML = "This field is required!";
fName.focus();
return false;
}
Hi! I couldn't find any information about this topic in the internet and I really wonder, how come people do not discuss it anywhere? Okay, jQuery works really great and offers many interesting effects, but what if you have JavaScript disabled? I mean I've browsed through several websites powered by jQuery with JS disabled and they doesn't work or behave weird. I know there aren't much people, who disable JS, but well I do want my page to be seen by all people in the end. I managed to do it with slider on my page (however I want to use other jQuery effects), but, for example, http://www.flowplaye...ools/index.html doesn't provide any information about this. Try to disable JS and see that nothing works. I can use <noscript></noscript> tag, but I have to make two main pages. And what if I want to view it on one page? What would you do? Regards, Aleks. have a look at this website. www.projectorhire.ie in the contactDetails div the number appears for a split second and then disappears.. it only happens in firefox.. Can anyone tell me what the prob could be? Hi, I used the code on the following example: http://www.w3schools.com/php/php_ajax_livesearch.asp Instead of xml I use mysql but it works the same way. My problem is with this character '#' (shift 3 - on my keyboard, or otherwise known as 'sharp'). Some of the words in my database table contain this character but when I type it, it acts like nothing was typed. Any idea on what to do to make this work like any other character? Thanks |
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