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JavaScript - Object Practice Example Not Working
Ok, so I know the scenario is a bit absurd, but I am trying to cut my teeth on these objects. So my goal here is to figure out new things about the concept...
I came up with the following to see if I could create a new (dynamically named) property for an object on the fly PHP Code: window.HTML=function(e,s,q){q?document.getElementById(e).innerHTML+=s:document.getElementById(e).innerHTML=s}; document.write('<div id="TestInfoDiv">Start</div>'); var ShowInfo = (function () { var TestInfo = {} , Loop = function () { HTML('TestInfoDiv','',false); for (var i in TestInfo) { HTML('TestInfoDiv' , i + ':' + TestInfo[i] + '<br />' , true); } var show = setTimeout(Loop , 100); }; Loop(); return { Info : function (i , v) { TestInfo = {i : v}; //New property is named 'i' value is correctly set to body width :( // return TestInfo = {i : v}; //Same result :( // TestInfo.i = v; //Same result :( } }; })(); ShowInfo.Info('bodyWidth',document.body.offsetWidth); Obviously this printed i:1123 and so forth -- but not bodyWidth:1123 Also, this did not update the value of the property at each iteration of Loop. Would there be a way to send document.boddy.offsetWidth to the function instead of it's value, so that I could re-test it on each pass? Essentially I'm trying to replicate the following in which I could view the contents of an array in real time for debugging, but using objects I would like to be able to add any test value to the property list. PHP Code: window.setInterval('SHOW_ARRAY(ChangedFiles);',200); ChangedFiles=[]; function SHOW_ARRAY(myArr){ HTML('ArrayDebug','') if(myArr){ for(var t in myArr){ for(var y in myArr[t]){ for(var u in myArr[t][y]){ HTML('ArrayDebug','<div>'+myArr[t]+'</div>',1); } } HTML('ArrayDebug',t+'<br />',1) } } } I know I don't need objects to accomplish this, remember: It's just a test scenario so that I can understand them better... Similar Tutorialshi im having a bit of trouble with a code i need to know what exactly does getFlashMovie return so i can figure out why this code isnt working in IE Code: <script type="text/javascript">
function getFlashMovie(movieName) {
if(navigator.appName.indexOf("Microsoft") != -1) {
var what = window[movieName];
alert(what);
return what;
} else {
var what = document[movieName];
alert(what);
return what;
}
}
function formSend() {
getFlashMovie("flashContent").callFunction();
}
</script>
edit: im using swfobject2, with dynamic publishing btw Below is the code that is using the name FFF in various places. The effect of all this is that the onclick function is not executed. I would expect a pop up alert when clicking the submit button. This only happens if I rename either the form id or the js variable. Can anyone explain what is going on here ? Code: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Title</title>
</head>
<script type="text/javascript">
function newobject(){
this.exec=exec;
function exec(){
alert("exec");
}
}
FFF = new newobject();
</script>
<body>
<form id=" FFF " name="somename" action="" method="GET">
<input type="text" id="someid" name="somename" value="value">
<input onclick=" FFF .exec()" type="submit" id="submitid" name="somesubmit" value="xxx">
</form>
</body>
</html>
Regards Heinz Hello, I am attempting to implement a javascript joystick plugin. The project has a google code page located at: http://code.google.com/p/javascript-joystick/ After installing the plugin, the javascript works flawlessly in IE and FF, however chrome has some issues with executing it. A hosted version of what I am having trouble with can be found at http://www.jimmyblaze.net/joytest/simple.html The issue seems to be with a snippet of code from the main script that attempts to create an object and embed it on the page. The trouble area can be found he Code: try {
ctrlFF.type = "application/x-vnd.numfum-joystick";
ctrlFF.width = 0;
ctrlFF.height = 0;
/*
* Before accessing the plug-in's script interface it needs to be
* added to the page. If the 'setDevice' call fails, the plug-in
* is assumed to either not be installed or not working in this
* browser, in which case it is removed in the catch.
*/
document.body.appendChild(ctrlFF, document.body);
if (ctrlFF.setDevice(0) != null) {
/*
* As with the code for IE, any non-null value is a
* success.
*/
return ctrlFF;
}
Chrome doesn't seem to support the .setDevice function, as when running the chrome developer tools inspect element tool, I can see it throw an exception at that line, and prompts the user to update java, because it thinks it is out of date. Has anyone run into this issue with chrome and know of a possible fix? Thanks a lot for your time, Legomaniac I must be misunderstanding a fundamental aspect of javascript because I have been sitting here scratching my head for an hour trying to figure out why my code produces a nAn for the gpa calculation. I intended the calcutator to erase any entries that are not standard grades, and prompt the user to fill in blanks if there are any. I apologize if the code is too long. I think there is a probably a way to cut it down, so if someone could tell me how that would also be extremely helpful. P.S. the calculator is supposed to convert the letter grade to the gpa score (A-->4.0) so if someone could explain how it would be done in an array instead that would help. I tried to do it, but I couldn't get that to work. This way is functional albeit long. My main issue is the calculator's inability to calculate! Thank you for any responses. I cannot attach anything so I will include a pastebin link instead: http://pastebin.com/DfyR46p2 Hi, 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. Which is considered best practice? Code: <div onmouseover="doThis();">
myDiv.onmouseover = doThis;
myDiv.addEventListener("mouseover",doThis,false);
...or something else? 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 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 ();
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'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. Ignore post (if mod, please delete)
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. 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. I am trying to troubleshoot my javascript function below. Code: <script type="text/javascript">
function txtboxfill(fillobj) {
var rChar=String.fromCharCode(13);
var myVal = "To: " + this.form.to.value + rChar;
myVal = myVal + "From: " + this.form.from.value + rChar;
myVal = myVal + "Subj: " + this.form.subj.value + rChar + rChar;
myVal = myVal + "Message: ";
fillobj.value = myVal;
}
</script>
Then I have a text box input field with an Code: <input type="text" id="tp" name="to" size="34" class="totext" onkeyup="txtboxfill(this.form.msg_area);"> and when I enter text in this field it gives me a 'this.form.to' is null or not an object and does not populate the textarea. BTW, msg_area is the id of my textarea. Thank you. I hope I have this post in the right place! Any help would be very much appreciated... I have a feature on my website that allows users to choose the website background (using alternate css sheets) and then uses an externally linked javascript file to store the background choice as a cookie so it is consistent throughout the website. This works perfectly locally (i.e. when previewing my website on my computer) but now it is uploaded to my host it doesn't appear to be working. (with the same browser) My javascript is he http://www. b r p - e n v .com/javascript/backgroundchange.js (with no spaces) The website that the javascript file is linked to is http://www. b r p - e n v .com (with no spaces) In the head I have: <script type="text/javascript" src="../javascript/backgroundchange.js"></script> ...then I have: <body onload="set_style_from_cookie()"> ...and for users to choose which background: <form> <input type="image" src="../images/white-background-thumb.jpg" onclick="switch_style('bg1');return false;" name="theme" value="White" id="bg1"> etc... </form> My problem is: The background reverts back to the default when moving to a different page. This would indicate that the background choice is not being saved in cookies. But this works locally! I have tried putting the javascript directly onto each page but I still had the same problem. I hope someone can help, I will be so grateful if I can get this to work. Many thanks indeed! Hi All, I have two sites using zeroclipboard (hosted at google code) one works only in firefox and barely, the other is not working at all. It does use Flash, but I think the issue is on the js side of things. On both links, clicking the filename below the thumbnail will copy and add the link as an IMG code to a div below. *working* link http://pics.boasbysatyra.com/access/spiders.php This one only works in FF, and the clip area is offset badly. Here is the template for the zc code: Code: <div class="photo" style="float: left; padding: 4px;">
<div class="exif"><a href="[~41~]?dir=[+images_dir+]&file=[+filename+]" rel="shadowbox[exif_[+content_id+]]" title="exif data for [+filename+]" alt="exif data for [+filename+]">EXIF Data</a></div>
<a class="thumb" rel="shadowbox[[+content_id+]]" href="[+images_dir+][+filename+]" title="[+title+] | [+description+]">
<img src="[+thumbs_dir+][+filename+]" alt="[+title+]" />
</a>
<div class="filecode" id="d_clip_button[+filename+]">[+filename+]
<script language="JavaScript">
var clip = new ZeroClipboard.Client();
clip.setText( 'http://pics.boasbysatyra.com[+images_dir+][+filename+]' );
clip.glue( 'd_clip_button[+filename+]' );
clip.addEventListener( 'onComplete', my_complete );
function my_complete( client, text ) {
$('.picklist').append('<div class="piclinks">[IMG]' + text + '[/IMG]</div>');
}
</script>
</div>
</div>
And the JS for the page: Code: var needRef;
//flag for page reload
function pEdit(){
needRef = 1;
}
Shadowbox.init({
handleOversize: "resize",
modal: true,
initialHeight: 32,
initialWidth: 400,
overlayOpacity: 0.85,
onClose: function(){//check for reload flag and reload
if (needRef == 1){window.location.href=window.location.href;}
}
});
ZeroClipboard.setMoviePath('/js/zc/ZeroClipboard10.swf');
function initMenu() {
$('#menu ul').hide();
$('#menu ul:first').show();
$('#menu li a').click(function() {
var checkElement = $(this).next();
if ((checkElement.is('ul')) && (checkElement.is(':visible'))) {
//return false;
}
if ((checkElement.is('ul')) && (!checkElement.is(':visible'))) {
$('#menu ul:visible').slideUp('normal');
checkElement.slideDown('normal');
return false;
}
});
}
$(document).ready(function() {
initMenu();
});
Now on to the totally broken one - it creates the elements required, but gives them a 0x0 area! http://jb.boasbysatyra.com/forum-pic...cs/nature.html Code: div class="photo" style="float: left; margin: 4px;">
<div class="exif"><a href="[~133~]?dir=[+images_dir+]&file=[+filename+]" rel="shadowbox[exif_[+content_id+]]" title="exif data for [+filename+]" alt="exif data for [+filename+]">EXIF Data</a></div>
<a class="thumb" rel="shadowbox[[+content_id+]]" href="[+images_dir+][+filename+]" title="[+title+] | [+description+]">
<img src="[+thumbs_dir+][+filename+]" alt="[+title+]" />
</a>
<div id="d_clip_container[+filename+]" style="position:relative; width: 120px; height: 0.5em;">
<div class="filecode" id="d_clip_button[+filename+]">[+filename+]
<script language="JavaScript">
var clip = new ZeroClipboard.Client();
clip.setText( 'http://jb.boasbysatyra.com[+images_dir+][+filename+]' );
clip.glue( 'd_clip_button[+filename+]','d_clip_container[+filename+]' );
clip.addEventListener( 'onComplete', my_complete );
function my_complete( client, text ) {
$('.picklist').append('<div class="piclinks">[IMG]' + text + '[/IMG]</div>');
}
</script>
</div>
</div>
</div>
On this one I wrapped it as suggested on the zc site, I originally started with the code for the other site - it didn't work, so I went tweaking... Here is the JS: Code: var needRef;
//flag for page reload
function pEdit(){
needRef = 1;
}
Shadowbox.init({
handleOversize: "resize",
modal: true,
initialHeight: 32,
initialWidth: 400,
overlayOpacity: 0.85,
onClose: function(){//check for reload flag and reload
if (needRef == 1){needRef = 0; window.location.href=window.location.href;}
}
});
ZeroClipboard.setMoviePath('/js/zc/ZeroClipboard10.swf');
$(document).ready(function() {
$(".dim img").fadeTo("slow", 0.65);
$(".dim img").hover(function(){
$(this).fadeTo("slow", 1.0);
},function(){
$(this).fadeTo("slow", 0.65);
});
$('#mainContent').hide().fadeIn(1200);
//When page loads...
$(".tab_content").hide(); //Hide all content
// $("ul.tabs li:first").addClass("active").show(); //Activate first tab
// $(".tab_content:first").show(); //Show first tab content
//On Click Event
$("ul.tabs li").click(function() {
$("ul.tabs li").removeClass("active"); //Remove any "active" class
$(this).addClass("active"); //Add "active" class to selected tab
$(".tab_content").hide(); //Hide all tab content
var activeTab = $(this).find("a").attr("href"); //Find the href attribute value to identify the active tab + content
$(activeTab).fadeIn(); //Fade in the active ID content
return false;
});
});
(function($) {
$(document).ready(function(){
$('.menu1').ptMenu();
$('.menu2').ptMenu({vertical:true});
});
})(jQuery);
I have taken a look at this for a few days and tried many things with no luck, any help is appreciated. Thanks! Ok, here's the page as it is right now: http://www.crackin.com/dev/index.php The paganation for the top 3 images is Sweet Pages: http://tutorialzine.com/2010/05/swee...tion-solution/ The content loading below is a page-replace script I got he http://css-tricks.com/dynamic-page-replacing-content/ And I'm also trying to integrate shadowbox (or lightbox, whichever will work) into the lower set of images. I have 2 problems right now I can't figure out, and I'm sure it somehow has to do with the fact I'm trying to mash 3 different JS addons into a single page, I'm still pretty new to this whole JS thing... First problem I'm having is that IE7 and Opera don't like the links in the upper images. Clicking a gallery image does not load the associated page below from those 2 browsers, however IE8 and FF seem to work fine. Second problem is getting shadowbox/lightbox to work on those lower images. I tried a couple different things but main thing I did is make sure the script is actually working by setting the header text to a link with shadowbox attached and that worked. That same link doesn't work when applied to the lower images (loads image in new window). Lightbox does the same thing. Thanks for any help. hereis the html file and javascripton click of this button a html ***************************** <table class=matcolor id=topnav cellspacing=0 cellpadding=0 width=550 border=0 bgcolor="#FFCCCC"> <tbody> <tr align=middle> <td id=menu1 onMouseOver="this.className='mPrimaryOn';showmenu(this);" onClick="this.document.location.href=''" onMouseOut="this.className='mPrimaryOff';hidemenu(this);" class="mat" height="20"> <div align="center"><font color="#FF0000">Desk Top Publishing </font></div> </td> <td width=1 bgcolor=#ff9900 class="mat"></td> <td id=menu2 onMouseOver="this.className='mPrimaryOn';showmenu(this);" onClick="this.document.location.href=''" onMouseOut="this.className='mPrimaryOff';hidemenu(this);" class="mat" height="20"> <div align="center"><font color="#FF0000">Transcription</font></div> </td> <td width=1 bgcolor=#ff9900 class="mat"></td> <td id=menu3 onMouseOver="this.className='mPrimaryOn';showmenu(this);" onClick="this.document.location.href=''" onMouseOut="this.className='mPrimaryOff';hidemenu(this);" class="mat" height="20"> <div align="center"><font color="#FF0000">Accounts Processing </font></div> </td> </tr> </tbody> </table> ***************************************** <script language=JavaScript> ix = document.getElementById('tblmenu1').getBoundingClientRect(); new ypSlideOutMenu("menu1", "right",ix.left + ix.right ,ix.bottom + 10); </script> **any thing i have to alter to work in firefox please help I have a usercontrol which get inputs from the user and show the slideshows. I have added jquery.js and jqfancytransitions.js to the control. when i apply the effects dynamically it is working on local iis but the same coding is not working on iis server. The link for the page is http://www.gloriatech.com/slideshow.aspx . Actually it display the images but no effects are applied. I also checked the js files, it is in right path only.When i checked this page in firebug , it shows the error which is " Sys is undefined". I dont know how to solve it. Can anyone help me? Thanx in advance. |
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