i have learning reports in access and i don't understand the differencebetween these two concepts. i understand that the control source is the column? but then what is the row source?
In what cases I should use Array(Buffer) and List(Buffer). Only one difference that I know is that arrays are nonvariant and lists are covariant. But what about performance and some other characteristics?
For example in the jQuery documentation I find both JSON and JSONP mentioned. What is the difference exactly? How can I see which is which? Which one should be used for what?
And what does the PHP function json_encode generate?
what is the differencebetween
try{..}/catch{ throw } and
try{...}/catch(E){throw new Exception(E.message) }??
regardles that the second shows a message ?
What is the differencebetween executing php from command line and from Http side .Do They use the same executable such as (Php.exe or php-cgi.exe ( Apache or IIS )).Do the Results differ when they are executing from Commandline or HTTP side.
When I am concatenating object values together to form a string in VB.NET, is there a difference in performance or a recommended best practice between using the & concat or the + concat with calls to .ToString() on each object?
Example (which is faster or best practice):
Dim result1 As String = 10 & "em"
Dim result2 As String = 10.ToString() & "em"
I have two objects of Zend_Date class and I want to calculate the differencebetween them in full calendar months.. How can I do this?
<?php
$d1 = new Zend_Date('1 Jan 2008');
$d2 = new Zend_Date('1 Feb 2010');
$months = $d1->sub($d2)->get(Zend_Date::MONTH);
assert($months == -25); // failure here
Thanks in advance!
What is the differencebetween JavaFX node and a UI component?
I understand that the both concepts are similar but I am sure that there is a reason why we call a JavaFX Node a node and not a Component.
Hi everyone,
Will there be any measurable performance difference when passing data as values instead of as reference in PHP?
It seems like few people are aware of that variables can be passed as values instead of references. Is this common sense or not?
q1) what is differencebetween mvc1 and mvc2 ?
q2) everything that is in mvc1 is in mvc2?I am asking this question because there is a debate in my place of work as we can find many resources and ebooks on mvc1 not mvc2 so we should use mvc1 in our portal.
q3) same ajax functionality can be implemented in web forms as well as in mvc or mvc2. or there is some limition in mvc?
Hello, recently I've been trying to debug some low level work and I could not find the crt0.S for the compiler(avr-gcc) but I did find a crt1.S (and the same with the corresponding .o files)
What is the differencebetween these two files? Is crt1 something completely different or what? They both seem to have to do with something for bootstrapping(setting up stack frame and such), but why the distinction?
when i convert a object to int by
(int)object
then when the object value is 0 then he give me error that specific cast not valid.
when i convert a object to int by
convert.toint32(object)
then he works and give me 0 means cast is valid.
and i want to know that what is differencebetween both.
1. (int)object
2.convert.toint32(object)
i cant understand what the difference is between a namespace and a scope in the routing of ruby-on-rails 3.
could someone please explain?
namespace "admin" do
resources :posts, :comments
end
scope :module => "admin" do
resources :posts, :comments
end
thanks
In some of my programs I have noticed that in some cases there is a difference in speed when using either the pre(++i or --i) and post(i++ or i--) decrement operators. Sometimes pre is faster and other times post is faster. I can't seem to figure out why. Could someone please explain this to me?
scrollViewDidEndScrollingAnimation and scrollViewDidEndDecelerating
Looks like the last one is called when the bouncing effect is finished. But can't really understand what's the differencebetween first because they are called same time(well, decelerating called first).
To my understanding the differencebetween a macro and a function is, that a macro-call will be replaced by the instruction in the definition, and a function does the whole push, branch and pop -thing. Is this right, or have I understand something wrong?
Additionally, if this is right, it would mean, that macros would take more space, but would be faster (because of the lack of the push,branch and pop instructions.), wouldn't it?
Is there a differencebetween these ?
if(myString.equals("")){
}
if(myString.equals(null)){
}
if(myString == ""){
}
I have a string, I don't know is it empty or has some emtpy spaces I just wan't to stop it to be written in database if it is invalid(if empty or with some blank spaces).
Is there a difference, performance or efficiency wise, between placing javascript calls such as blur, onclick etc. in $(document).ready(function(){ as opposed to placing them in DOM?
Thanks!
I am using MVC design pattern in jsp-servlet web application, and want to what is the exact differencebetween MVC1 and MVC2 , can someone help?
EDIT newly I hear that there is 2 versions of using MVC in servlet programming, I hear that in MVC1 there is kind of coupling between controller and view , but in MVC2 they overtake it, if someone know whether this is right or wrong I'll be very thankful.