RegExp Object Property LastIndex
Sep 6, 2006
Given the following code and its execution to the last line:
var re = /beta/;
var string = "alphabetagamma";
var report = re.exec(string);
should not:
re.lastIndex = 9;
after the last line of execution?
On Firefox, Venkman continually reports zero.
Specification for JS 1.5 defines property lastIndex as follows:
The index at which to start the next match.
As of JavaScript 1.5, [it is] a property of a
RegExp instance, not the RegExp object.
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Aug 5, 2011
I have an object with a single Method to load content from a xml file. The problem is... how do I add a property to the object to store the data loaded?? I tryed adding a simple Array inside the object, but didn't work.
[Code]...
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Aug 10, 2010
I'm finally diving into regexp by porting a perl script over to js that uses regexp to compress javascript into a bookmarklet capable format.I've successfully worked out 90% of the expressions but am troubled with a few, this one at the moment is odd:I want to remove the first line if it hasjavascript:So I thought str.replace(/^javascripts+:s+/, "") would be ok. I want javascript text, any space, colon, any space and new line. what I'm doing wrong.btw this is the original perl version
$src =~ s{^// ?javascript.+:.+
}{};
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Oct 28, 2005
({}["toString"]) - function
alert("toString" in {}) - true
But I want to only find a property that is defined in the object - not in a prototype.
for(var prop in {}) { alert(prop); }; // toString not found.
It seems that operator 'in' is overloaded. 'in' during iteration: look in the property. 'in' in a boolean conditional: look in the object, then up the prototype chain.
I want a way to get only properties defined within the object itself, not it's prototype. Is there no simple way?
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May 30, 2009
Is there some way to add a property to a object ?
Code JavaScript:
if (Object.__count__ == undefined)
{
Object.property.__count__ = function {
// [url]https://developer.mozilla.org/En/Core_JavaScript_1.5_Reference/Global_Objects/Object#section_8[/url]
count and return
}
}
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Jan 19, 2007
I found this in felgall's page. I added script tag
<script type="text/javascript">
var re = /(t)he/g;
var mystring = "Over the moon.";
re.text(mystring);
alert(RegExp.input); // or RegExp.$_
alert(RegExp.leftContext); // or RegExp["$`"]
alert(RegExp.rightContext); // or RegExp["$'"]
alert(RegExp.lastMatch); // or RegExp["$&"]
alert(RegExp.lastParen); // or RegExp["$+"]
alert(re.source);
</script>
I don't see message box. Please tell me what I can do.
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Sep 9, 2005
Is there a way to determine the object that a property is in? For
example:
function MyClass() { ... }
MyClass.prototype.myFunc = function() { ... }
var obj = new MyClass();
var sameobj = SOMEFUNCTION(obj.myFunc);
So my goal is to get a reference to the object by just having the
property.
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Aug 10, 2006
Some of the object properties in the Dojo Toolkit are set to objects but they are using syntax like this:
object.property = new function() {
this.property = someValue;
this.property = someFunction;
}
Is the property set to a new object and if so what is the "new function()" statment doing?
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Jul 20, 2005
With something like this : <form name="a"><input name="name"></form>
Is it possible to get the name of the form (a) and access the input object
(name) too?
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Aug 11, 2009
I have a JS script that presents a series of "pages" with different questions inside a single HTML file, by rewriting certain <div>s. I have an object like this that contains the questions and information about answer labels etc (the idea is that this should be easy to modify for someone who doesn't know JS):
[Code]...
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Jul 23, 2005
How is it possible to take the value of a variable (in this case,
MODE_CREATE, MODE_UPDATE, etc) and use that as an object property name?
In the following example I want 'oIcon' object to have the properties:
mode1, mode2, and mode3.
This seems simple but I can't quite figure it out...
Any ideas anyone?
var MODE_CREATE = "mode1";
var MODE_UPDATE = "mode2";
var MODE_DELETE = "mode3";
var oIcon = {
MODE_CREATE: "create.gif"
, MODE_UPDATE: "update.gif"
, MODE_DELETE: "delete.gif"
};
var oTitle = {
MODE_CREATE: "Create a new item..."
, MODE_UPDATE: "Update this item..."
, MODE_DELETE: "Delete this item..."
};
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May 8, 2006
I have situation that when my page is loaded i create js object
<html>
...
<script>
function Page() {
this.page = 0;
this.result = 0
this.resultCount =1;
this.currentPage =1;
}
MyPage= Page()
</script>
then in my javascript function i use object like this:
function getPage() {
if(!MyPage) {
MyPage = new Page();
}
return MyPage;
}
but there is one problem: MyPage lost one of the property, currentPage.
When i do alert(MyPage.cuurentPage) shows mi undefined. After object
initialization everything seems to be alright, currentPage is set to 1
but when i Try use MyPage in my js code is already set to undefined.
What happen? What I'm doing wrong?
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Apr 20, 2011
i am locking for something to get all Propertie`s of an Object (with an each loop?)
<div id="blub" class="blah" name="blah"></div>
<script>
$('div').attr(function(){
[code]....
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Oct 16, 2009
[Code]...
How to know the div have position property or not?
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Feb 16, 2009
I want to be able to set a property on a private object by giving the not notation path to the value. The difficulty is that this object is within closure so I can't access it directly to set the value the normal way (eg. dot.notation.path = 'new value'). This seems weird but I can't think of the obvious way.
Example:
// setter function
function set(path, change){
var privateObject = {
a: 'a',
[Code]....
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Dec 5, 2011
I am doing javascript from a book called "Prentice Hall(which sounds very masonic) : Javascript by example".
my question is this. I am doing an practice dealing with "defining methods for an object" now i used this code verbatim
[Code]...
I did this code in the book exactly. I am just trying to warp my head around this and want to understand how is this an error when it is just the crating a new property.
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Sep 28, 2009
I've ammended my code now so that I'm using objects, constructors and prototypes.
If I use the standard constructor.prototype.functionname = (){......} type of setup it works okay.
However I'm now experimenting with overwriting the prototype with a literal. As in the code below. i.e. constructor.prototype = {functionname : function() .......
Doing it this way my first new object instance fails. The subsequent new objects are fine.
I ran a check on the properties of the 1st object with '!hasOwnProperty and name in' and the result is that the prototype (or pointer to a prototype) is missing.
So the first new object of FontTrans (oH) has
Code:
1 property is Heading
.
.
9 property is Delay
[Code].....
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May 1, 2007
I've created a small AJAX library for our application. We send the response data back as JSON in responseText. So far so good.
Before we invoke the response handler, I'm putting the eval'ed responseText in the request object like so:
Code:
req.respText = eval('(' + req.responseText + ')');
This works in FF but breaks in IE 6. (*gasp*)
I finally got the Microsoft Script Editor yesterday, so I could play with the values and see what was going on. Kind of... I'm still in the dark. For some reason, it won't let me add a property to req. Can anyone explain why/how it prevents me from doing so?
Conceivably I could add the eval'ed responseText to the response handler function, but that would break the API, and would require us to modify a bunch of existing functions.
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Apr 18, 2010
I need to acsess an object property via variables, but don't get ahead.
Example:
var property = height;
"height" is a property of the object "flower". Now, I need a possibility to access "flower.height" with my variable property, means -->"flower.property" I tried everything like "flower.[property]" "flower.['property']" etc. but nothing did help.
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May 18, 2010
I'm trying to come up with a swipe gesture for part of the mobile version of my website. Right now, I'm just playing with mouse movements instead of the touch events so I can play with it on my computer rather than having to load the page up on my iPhone every time. Here's the problem: onmouseup, I run a calculation to determine where the closest element is to the edge of my container. Whichever one is the closest, I do a simple animate() to that element. It looks like this:
[Code]...
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Nov 2, 2006
I'm trying to write a little script that disables the submit button on a form, changes the text of the button, and then submits the form.
Can anyone tell me why this works ok:
<input type="button" value="Submit" onClick="this.disabled=true;
this.value = 'Submitting...' this.form.submit();">
But when I try to make a function it doesn't work:
<script language="JavaScript">
function DisableButton(b) {
b.disabled = true;
b.value = 'Submitting...'
b.form.submit();
}
</script>
<input type="button" value="Submit" name="submit"
onClick="DisableButton(this);">
When I try this the button text is changed and the button is disabled, but the form doesn't submit. In IE I get an error that points to theline that says:
b.form.submit();
and the error:
Object doesn't support this property or method
What's the difference between doing this code directly in the onClick event and doing it in a function?
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Mar 22, 2007
Hi, I am attempting to create a script in which object A contains an
array of "objectb" objects. An overview of the code is posted below.
When I attempt to access "myObjArr" array like this:
alert(test1.myObjArr[0].a);
I get the error "myObjArr is undefined"....
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Apr 1, 2010
I got a javascript object with some propeties let's say
function Animal() {
this.id; this.name;
}
I need to call id function in a dynamic way to get and set its value: something like this
Animal animal = new Animal();
var propertyName = "id";
animal.+propertyName = "name";
I tried like this:
$animal = $(animal);
$animal[propertyName]();
but i receive animal.propertyName is not a function.Is there an elegant way to do it with jQuery?
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May 19, 2009
function JGallery(){
this.name="defaultGallery";
this.images=[{//some JSON here}]
this.render=function(){
[Code].....
I've tried to debug it in firebug, but I guess there is a problem with the scope of the 'this'. The 'this' in
//i want append div with id of the name property of jgallery class
$("<div></div>").appendTo("#container").attr("id",this.name);
seems to refer to the iterator in the $.each().
I've tried to do this.this.name but it still doesn't work. Is there any way to allow me access the property of the Jgallery class?
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Nov 17, 2010
appears only in IE: l2 = obj.parentNode.getElementsByTagName("select")[0].value; --> object does not support this property or method var l2 = obj.parentNode.getElementsByTagName("select")[0].value;
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Oct 28, 2011
I do not really understand what is happening to my code but it just tell me the following code...
How could the movingword be null when I have declared it in my code? :confused code...
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