JavaScript - Using Objects As Object-keys

I have a randomly generated Language file that corresponds to keys, the reason Ii say randomly generated is that the letter to key values used are not standard assignments.

It seems the language coding is DEC in sets of 3 values by 5 .i.e.

"248 036 034 036 248" = A
"036 084 084 084 120" = a
(See attached : ENGLISH-1.txt)
How would I assign these values to a sentence lets say:
All great : 248 036 034 036 248 ll gre 036 084 084 084 120 t
but convert all characters to their correspondnig sets of 5 ?

This then needs to get sent to a database where it is interpreted into sets of Binary to turn on and off LEDs' ...
I have never worked with Javascript or LED's before, so any help is so appreciated.

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.

Hello,

I am using some api solutions in my javascript. But, those api solutions require api keys as parameters. In this case, users can see my api keys by displaying page source?

What is a true approach and solution of course?
Thanks

hi everybody;

i'm using this code to trigger functions with left and right arrow keys..

but they work even if the arrow keys pressed in input boxes.. is there any way to prevent this code to work when user presses the arrow keys in input boxes?



Code:

document.onkeydown = function(evt) {
    evt = evt || window.event;
    switch (evt.keyCode) {
        case 37:
	geri();
	gostergeyaz();
	break;

        case 39:
	ileri();
	gostergeyaz();
	break;
    }
};

I need to disable some keys from their default behaviour in Google Chrome on Windows with javascript.
The script below works for most keys but not for F10, left Windows key, right Windows key, NumLock and left Alt. (which are the keys I need to disable)

Code:

<script type="text/javascript">
addEventListener("keydown", function (event) {
if(KeyID == 121 KeyID == 91 || KeyID == 92 || KeyID == 144|| KeyID == 18 ){
    event.preventDefault();
}
}, true);
</script>

I have also without luck tried event.stopPropagation () - event.cancelBubble = true - return false og void().

I would like to know if their is a solution or it simply isn't possible to disable the mentioned keys.

How to use the shortcut keys in jvascript?
Can someone illustrate it to me with an example?
Such as suppose on clicking the Ctrl+alt key,i want to display a prompt dialog box........How to do this?
Need some urgent help.....
thank you in advance

Disable Arrow Keys

I am creating an online flash gaming site, Aaron's Game Zone: http://azzaboi.weebly.com

Some of the games on it use the arrow keys, however IE also uses them to scroll the page. I am learning JavaScript and am trying to write some script to pervent the page scrolling up and down while playing a game.

For example...

Guardian Rock uses the arrow keys to slide around, at the same time the page scrolls. http://azzaboi.weebly.com/guardianrock.html

Here is the script I've tried to write to pervent the scrolling:

Code:

<script type="text/javascript"> 
  function KeyPressHappened(e){ 
      if (!e) e=window.event;
      var key=e.charCode ? e.charCode : e.keyCode ? e.keyCode : 0; 
      if(key == 37 || key == 38 || key == 39 || key == 40) 
      { 
          e.preventDefault(); 
          return false; 
      } 
      return true; 
  } 
  document.onkeypress = KeyPressHappened;
</script>

There's a bug in it or it's not correct, no error message given, could anyone point out the mistake please?

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 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 have a search box on my website, that gets users from my database using php. And uses Javascript to display suggestions as the users type. What I'd like to be able to is to use the arrows to toggle down through the different suggestions. Any ideas how I would go about doing this?

Here's the javascript part of the code:
Code:

function createObject() {
	var request_type;
	var browser = navigator.appName;
	if(browser == "Microsoft Internet Explorer"){
	request_type = new ActiveXObject("Microsoft.XMLHTTP");
	}else{
		request_type = new XMLHttpRequest();
	}
		return request_type;
}

var http = createObject();

/* -------------------------- */
/* SEARCH					 */
/* -------------------------- */
function autosuggest() {
q = document.getElementById('search-q').value;
// Set te random number to add to URL request
nocache = Math.random();
http.open('get', 'lib/search.php?q='+q+'&nocache = '+nocache);
http.onreadystatechange = autosuggestReply;
http.send(null);
}
function autosuggestReply() {
if(http.readyState == 4){
	var response = http.responseText;
	e = document.getElementById('results');
	if(response!=""){
		e.innerHTML=response;
		e.style.display="block";
	} else {
		e.style.display="none";
	}
}
}

On http://kisa.ca/cc/ I'm using JQuery's .keydown() to grab arrow keys.
http://pastie.org/938572

But my friends using Linux are unable to use arrows to play the game:
http://alteeve.com/files/cc.png

Halp?

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'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.