Define A Constant In A Virtual Class

Jun 8, 2007

How is it possible to define a constant in a virtual class?

E.g. I wrote the following code

tml = {
sayHello : function()

now if I want to add a constant into tml virtual class, what I need to

I tried something like

tml = {
const1 : Integer = 0,
sayHello : function()


tml = {
const1 : function(){return 0;},
sayHello : function()

in both case, trying to get - inside tml object - the value of
const1 ... it results in a Object value and not the Integer value I

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Define Or Call A Function From A Css Class?

Jun 6, 2009

how i can define or call a javascript function from a css class or id.

I basically want to display a javascript carousel image rotator and i have the function but don`t know how i can call it using a css class that i can later reference in an html <img class"carouselfunction"> tag.

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I have a wordpress website with which I wish to provide content via an iframe on facebook.. Without using a wordpress plugin, I would like to know if I provide a function in jquery that basically says if viewport is equal to 520px then either load this css file or add this body class.. Also, if viewport is = to 520px then hide this element.. I think this can be done but after a lot of searching, I cannot seem to find a definative answer..

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Dec 15, 2010

is it possible reference an input tag based on a variable passed to a function instead of its name directly. For instance I have a function:

function checkedAll(Name)
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Jun 16, 2009

i hav an array named contents [i] where i wanna get every 3rd value out of it.below i make an example:

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i wanna find a script dat could return every third value which is 3,6,9

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Oct 9, 2011

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I have this now:


<script type="text/javascript">
function ChangeScrollState (select) {
var iframe = document.getElementById ("thisIframe");


If I hit the option with scroll I get what I want, but how do I make this static?

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Virtual Function ?

Feb 10, 2006

I have an interesting problem. I have created an html based interface that
links to an external .js file with only functions in it. The functions set
an arrays values depending on which function is called by the interface....

The external .js file looks like this below:

function myFunction1(){
arryEntry[0] = "some value1";
arryEntry[1] = "some value2";
arryEntry[2] = "some value3";
arryEntry[3] = "some value4";

function myFunction2(){
arryEntry[0] = "other value1";
arryEntry[1] = "other value2";
arryEntry[2] = "other value3";
arryEntry[3] = "other value4";

In the html interface I am calling the function(s) depending on a list
selection. This functions one arg (functionNumber) depends on a list

function getArryEntries(functionNumber){
var value0 = arryEntry[0];
var value1 = arryEntry[1];
var value2 = arryEntry[2];
var value3 = arryEntry[3];

This all works well so far and the array entries are changed successfully
depending on the getArryEntries(functionNumber) selection.

However, at some time in the session I am adding (actually writing)
additional functions to the external .js file. Appending to the file. The
problem is that the interface will not pick up the newly written functions
on runtime. If the interface is closed and opened again, then it can see the
new functions.

I thought of initiating an array of the existing functions when the
interface loads and append to the array when the new functions are created.
It would then write to the file, but use the array at runtime. No success so

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Virtual Files!

Jun 21, 2007

This function will produce a URL that appears to be a file.

There are two versions:
1. a 500-pound gorilla version that accepts almost anything as input.
2. a lightweight version that turns strings into virtual HTML files.

First I'll mention the one major drawback: IE doesn't recognize data urls ( yet.

For a Live Demo, paste this into your addressbar and click go. (press back to return).
//output of: dataUrl("<b>hello world</b>", "text/html")

With that out of the way, here's the code:

function dataUrl(data, mimeType){ // turns a string into a url that appears as a file. (to ff/op/saf)
encType= (!!btoa) ? ";base64" : "";
var esc = (!!encType) ? function(d){return btoa(d);} : function(d){return escape(d);};
if(!mimeType){mimeType= (data.nodeName) ? "text/html" :"text/plain";};

if ("string number date boolean function".indexOf(typeof data) > -1){ b+=esc(data.toString()); return b; };
if ( data.constructor==Array){b+= esc( data.join("") );return b; };
if(typeof data=="xml"){b+=esc(data.toSource()); return b;} //FF2 xml frag/doc
//for more complicated data, attempt to determine the format.
if(typeof data=="object"){
if(!!data.value && !!data.value.length){b+=esc(data.value); return b;}; //input tags w/content
if(!!data.innerHTML){b+=esc(data.innerHTML); return b;} //HTML tag
if(!!data.length){ //weird stuff like nodelists
var G=function(ob){r=[]; i=0;
if(dataUrl(ob)) r=dataUrl(ob[i]);} return r.join("
");};//end g
return(b+G(data));}//end if object w/length
if(!! eval(data.toSource()) ){b+=esc(data.toSource()); return b;}; //JSON
}//end if object
} //end function dataUrl

function dataUrlStr(data){ return ("data:text/html,"+escape(data));}

Usage: dataUrl(data, mimeType)
data- The desired contents of the file
mimeType- The type of content you want the browser to see.

output: An encoded string representation of the file; an href.
The output 'file' could be any text-based file format, depending upon what you set mimeType to be:
-HTML document (yawn) (text/html)
-Rss feed (text/xml)
-M3U playlist (audio/mpegurl)
-Excel spreadsheet, CSV (application/
-JavaScript (text/javascript)
-StyleSheet (text/css)
- You get the idea...

Input Details:
-Can accept [I]almost any javascript type: strings, numbers, arrays (which it will flatten), nodes, node lists, xml objects in FF2, functions (for which it outputs the source code), complex JSON objects, and dates. (whew, I think that's all of 'em...)
-if you want to output an element as html, or anything else as text, you can skip the mimeType argument.

-You will most likely want to assign the output to a link href or the .scr of a script, stylesheet, or iframe, or to window.location.href.
-If you assign it to an iframe or object, it will load immediately.
-assigning it to a (<a>) tag will let you 'right-click, SaveAs' the file.
-clicking the link will open the 'file' in the browser just like a regular file.
-output an html document that has scripts, and they execute immediately.
-the cool thing about this is that the script will have a clean context. (no global variables from the parent).
-if used in an iframe- it can push to main page via .
-if used in with an <object>, it will be completely private.

-doesn't work with IE yet.
-'saving As' doesn't offer a default file extention.
-there is 2kb limit for safari and opera URLs.
-search engines cannot see the links.
-XmlHTTP Requests from within usually don't work.
To save my fingers, I will utilize the follow shortcut functions in these examples:

function el(tid) {return document.getElementById(tid)};
function tags(tid) {return document.getElementsByTagName(tid)};

tags("a")[0].href=dataUrlStr("<b>Hello World!</b>")

//make a 2D array into an Excel SpreadSheet - (works with 1D lists also)
var grades= [["Subject" , "Grade"],
["Math", "A" ],
["English", "B+" ],
["Gym","C" ],
["Art","A-" ],
["Science","A+" ] ]
var exl=grades.join("
").toString().replace(/,/g , " ")
window.location.href=dataUrl(exl, "application/")
//note: if data contains commas: loop through main, .join(' ') each index.

//execute script in a fresh enviroment:
window.testme="123456789"; //make a new global
var testJs="<script>alert('hidden window.testme='+ window.testme )</script>";
var fr= document.createElement("iframe");"hiddenframe";'none'
document.body.appendChild(fr); //add a hidden frame
alert("main window.testme="+window.testme);

//re-using the above example, pass existing functions to the hidden frame, and return the result.
var tJs="<script>";
tJs+=[tags, el].join("
"); //bundle a couple functions
alert('hidden window has '+tags('*').length)"

//open a playlist
var plTxt="#EXTM3U
#EXTINF:202,Minuet in G"
el("hiddenframe").src=dataUrl(plTxt, "audio/mpegurl"

//open all the 'code' on this page as a plain text document.
function ob2Array(ob){var r=[]; for(var z=0; z<ob.length;z++){r[z]=ob[z]};return r};
function group( List, f) //applies a function (f) to an array and returns result...
{var z=0; Ray=[]; len=List.length;for (z;z<len;z++){Ray[Ray.length]=f(List[z]); }
return Ray;};
var codes=group(ob2Array(tags("pre")), function(x){if(x.className=="alt2")return x.textContent});

//make this thread into an rss feed
function tag(nd, tx){ return ["<",nd,">",tx,"</",nd,">"].join("")}
function dp (s) {var d = new Date();d.setTime(Date.parse(s)); return d.toUTCString()}
var X=PHP.htmlspecialchars
var chan=[]; var y = new Date();
chan[0]=tag("title", "");
chan[1]=tag("link", window.location.href);
chan[2]=tag("pubDate", y.toUTCString())
chan[3]=tag("link", "")

var codes=Group(ob2Array(tags("table")), function(x){
var i=[];d=""; p=d; t=d; l=d;j=d;a=0;

p=tag("pubDate", dp(x.rows[0].cells[0].textContent.replace(/-/g, "/")));
t=tag("title", document.title)
l=tag("link", ""+tags("table")[5].id.substr(4))
a="<author>"+ta.href+" ("+ta.textContent+") </author>";

return tag('item', j)
}//end if

tags("a")[2].href=dataUrl(tag("channel", chan.join("
") + codes), "text/xml")

So, i think that should be enough examples to get going.

[I]"The only limitation is your imagination"

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I have a form with a textarea field. I want to validate the input from
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To do this I am using the script:
form["text"].value == "Hello

But this gives an "unterminated string constant error" because the
browser converts this to:
form["text"].value == "Hello

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Jul 20, 2005

What do i need to add to the document line to stop getting an Unterminated
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itemtocheck = &#55614;&#56452;'

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Apr 6, 2005

I'm getting an error message come up in IE6 when somenone subscribes to my newsletter from my home page (either from the drop down hover box form or the left hand form) here .

After entering a name and email address
I get:

A runtime error has you wish to debug?
Line 4
Error: Unterminated string constant

When I click NO I then get a second small windows popup which says:

A runtime error has you wish to debug?
Error: Expected ')'

I've looked at lines 4 and 43 of my thanks.php page (the page subscribers get when they fill out the form but before they double optin via the email) and I can't find anything wrong. I guess the first message expects a semicolon and the second obviously a closing bracket. Code:

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Apr 29, 2011

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