Make Copy Of Object Literal?
Mar 30, 2011Consider the following:
Code:
myObjLit = {
prop1:null,
[code]....
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Literal Notation: Change Values Of A New Object Without Changing The Parent-object?
Oct 9, 2010I have the following code:
A = {
"value": "a",
};
B = A ;
B.value = "b";
alert (A.value); // => b
I expected A.value to be "a". how can I change values of a new object, without changing the parent-object?
Object Literal
Oct 17, 2006Below I declared a basic object literal with 2 methods. The
"doSomething" method is call from the "useDoSomething" method but the
call is only sucessful if I use the "this" keyword or qualify the call
with "SomeObj".
Can someone describe why this is happening?
var SomeObj = {
doSomething : function()
{
return 'Did something'
},
useDoSomething : function()
{
//Doesn't work - doSomething() no defined.
return doSomething();
//Works
//return this.doSomething();
//Works
//return SomeObj.doSomething();
}
}
alert(SomeObj.doSomething());
alert(SomeObj.useDoSomething());
Difference Between The Object Literal And The New
Jul 2, 2010I have read this from the interentfunction getArea(radius)
Imagine we want to create lots of circle objects using our object as a base - if we declare using the object literal, were not able to do that.
But the new operator can do that - basically allowing us to re-use a user-defined object.
can't understand on the above why we declare using the object literal not able to do that.
Object Literal - Getting The Functions To Run
Oct 2, 2007I am having a hard time getting the javascript file to run any of the functions after I've changed my original script to object literal format. Please tell me why it isn't working! I have attached a zip format of my code.
View 4 Replies View RelatedHow Do I Make & A Literal Character In An XML Parse?
Jun 23, 2006
The XML my PHP app is returning to my JavaScript function has elements in
it that contain special characters... specifically the ampersand & which
hoses up the data. ex: Company Name = "K & B Construction".
Can anyone give me some idea of how I make the data coming out of my
database translate as literal characters in the XML output?
IE - Object Literal Notation Error
Jul 1, 2009I'm declaring a class in OLN:
Code:
The problem is that in IE, when I call myfunc() it complains with the error: Class is undefined
I'm not sure what I'm doing wrong. Class is declared in as much global scope as possible, and that shouldn't even matter in JS.
Calling A Method In Object Literal ?
Sep 22, 2009I have this below code snippet
I have an object myscript and from within the method validate, i want to call the method init. so is there there anyway that I can call the method init without having to prefix like this: myscript.init();
I tried this.init(); but it's not working
Code:
Private Methods In Object Literal?
Aug 18, 2010i have something like this:
Code:
var o = {
f1:function(a) {
[code]....
Copy An Object?
Jul 23, 2005If I create an object with the following:
var ob1 = new objMyDefinedObject();
then I assign it to a new variable.
var ob2 = ob1
I know that this isn't coping the object into a new variable, its just
another reference to the SAME object unlike
var a = 20;
var b= a;
Which creates a copy of the variable "a" and stores it in variable "b".
How can I copy my above object into a new variable rather than
reference the same object ? What I want to do is create the object, do
a load of property changes, then copy the object into a new variable
and do a load more property changes.
How To Make Copy Ok When Uncheck Checkbox
Jun 16, 2011How to copy some text to the clipboard with jquery or javascript, from google. I know there is a plugin named zeroclipboard [URL] can do this with cross browsers. When I tested it on my site. I set it to copy text optionally. It can't work. My test link is [URL]. It always copys all the values. Even I uncheck some check box. May be the value doesn't be changed. But when I alter() the variable, the value is ok. how to correct it? I want it can copy the checked box value. If the box unchecked, then don't copy its value.
View 3 Replies View RelatedMake Html:select Tag Box Copy Pastable?
Jul 22, 2011I have a html:select tag box and I want to make it copy pastable directly from an excel sheet or notepad so as to dynamically updating its options, is it possible. Current code has html:select box separately and below this another text box is there, where i fill the numeric value, then press add button below and then it gets updated in the html:select tag box.
Is it possible to copy from some list of numeric values and then directly paste into the html:select and the array list gets updated from this pasted list.
JQuery :: Deep Copy $.extend() An Object Containing Selectors
Aug 17, 2010What happens if you do the following? - That is deep copy a jQuery selector.
[Code]...
I'm concerned whether the myObj.selector object will deep copy the whole of jQuery as part of the process. My initial tests did not show any obvious speed hit, but it is rather a basic test right now.
Literal Inherit From A Literal?
Nov 22, 2010what is the best way to setup one literal to be the prototype for another?So far I can only think of making a copy into a constructor.
Code JavaScript:
var meths = {
// creates a constructor function populated with a shallow copy of child
// the prototype for the new instance is set to the parent.
[code]....
Make A Degree Object That Inherits From The Number Object And Uses The Number Constructor
May 20, 2009I'd like to make a Degree object that inherits from the Number object and uses the Number constructor but adds a .rad() method that returns the value in radians.
If I do something like:
It generally works but I don't get Number's methods like toString and toPrecision.
Copy Functionality W/o Using Copy/Paste Buffer
Nov 28, 2006From any page, I want to be able to call a JS function that will do the
equivelant of select all, and copy. This data will then be posted to a
page that will log it.
This would be easy using copy/paste functionality but I don't want to
screw-up users copy/paste buffer. Anyone have an example of how to
retrieve all text with similar formatting of copying page to notepad
without using copy/paste functionality?
JQuery :: How To Make Special Moving Object
May 26, 2011how can i make a sampleparabolamoving like
View 2 Replies View RelatedJQuery :: Make Object Be Visible After 20 Seconds?
Feb 14, 2011Just started with JQuery and I need to make a hidden object be visible after 20 seconds.
I got this so far to make it invisible:
<script language="javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js">< /script>
<script>
$(document).ready(function() {
[Code]......
Make An Object Move Repeatedly While A Key Is Held Down?
Mar 23, 2011Anyone know of a good tutorial for making an object move repeatedly while a key is held down (ie move right 1px every second while right arrow key is held?)
View 3 Replies View RelatedPrototypes - Extending An Image Object To Make A Snowflake?
Jan 1, 2011In the spirit of the season, I wanted to make it snow on my website. So I began digging. Eventually I ended up with a script that moved an image element down the page in a snowflake-like manner. The problem with it was it was dependant on an img element for every flake - simply no poor programming when using an Object Oriented programming language.So I decided I wanted to extend (in Java-speak; most of my programming background is in Java) the in-built Image object. The new object's src variable will lead to an image of the type of flake it is. (I want to be able to have more variance in images than a simple dot.) The new object will have a function that will allow it to move.A separate,unrelated function will control when each flakes move.
I did some more research and read about prototyping on JavaScript Kit and here (http://mckoss.com/jscript/object.htm), but I still cant seem to get this to work. JS Lint says it's bug-free, but Firefox says "move()" is an invalid function. I am presuming the problem lies in my inability to fully grasp how to extend objects in JavaScript.
<html>
<head>
<script type="text/javascript">[code].....
Can't Dynamically Grab Script Object Properties / Make It Possible?
Jun 20, 2010I've got a javascript object is "is" that has dynamically populated properties. I make an ajax call to my database to grab usernames associated with unique ID's and populate the javascript. I can call a property directly like this: aler (is.softUser1) or alert(is.softUser2) and show the corresponding values. However since what is being returned from the database is dynamic I may need to call is.softUser5 or is.softUser8 so I need to do that call dynamically. code...
and that obviously doesn't work.
Is there a way that I can dynamically call that property based on whatever value "user" is?
Object Oriented Programming - Make A Round Corners Script
Feb 15, 2012I am trying to make a round corners script in object oriented programming method. This is purely for learning purposes.
The script is no where near complete but I am already having problems with it.
I am trying out the techniques described in 'David Flanagan ' text book 'JavaScript: The Definitive Guide, 5th Edition'
This code is called from html page which once working will place a round container around element
The selector parameter in Custom_rounded_container function is defined because only the else part of the if statement in Custom_rounded_container is executing. I put this in because few people at other forums thought the problem was because of the selector parameter being undefined.
External Javascript file
Make 422 (numbers) Works The Same Way As Just String Values In The Array/object Tree?
Oct 16, 2010I have JS object w/ following structure:
PHP Code:
json_data_object.422.name
thta should of out put me "hello world" as it is what it is in array but it does not as there is 422 there That's my ID from database, and I gotta use itNow, if I change that ID to something in letters say to "i" then everything is fine. ex
PHP Code:
json_data_object.i.name
That one would work, but then I have to chnge JSON string thta pulls data from DB and i cant really do that...So the question is how can I make 422 (numbers) works the same way as just string values in the array/object tree?
Replace String Literal
Jun 6, 2006How would one make the ECMA-262 String.replace method work with a
string literal?
For example, if my string was "HELLO[WORLD]" how would I make it work
in this instance.
Please note my square brackets are not regular expression syntax.
Parameterizing A String Literal
Mar 16, 2007A section of my webpage consists of two dozen lines of text displayed
by sequentially calling:
function printText1( text )
{
document.getElementById( "textLine1" ).innerHTML = text;
}
....
function printText24( text )
{
document.getElementById( "textLine24" ).innerHTML = text;
}
Is there a way to parameterize the string literal (textLineXX) so that
I can do it all by repeatedly calling one printText function?
Use A Literal In A Function Declaration?
Jun 14, 2010I have the following code which attaches a function to events in x number of comboboxes (x will probably always = 4, but I do not want to hard-code this). I wish to pass the value of i to the function being attached as well as the value of tempData. In other words, I want the parameters in function to be the value, not a reference variable.
In the current example, I am using the hard-coded variable ci. This I want to be replaced by a literal created when the event handler is attached (the value of the loop variable i). Also, notice that I get the filter value in the event handler (assigned to the variable ct). I would like to replace this code with the value of tempData which would also be determined when the evenet is attached (it is the same value in this case, but it keeps the onChange event from having to do this each time it runs).
var props = {
col_0: "select",
col_1: "select",
[code]....