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• What is the difference between \r and \n?

  - by Sam Lee

  How are \r and \n different. I think it has something to do with Unix vs. Windows vs. Mac, but I'm not sure how exactly they're difference, and which to search for/match in regexes.

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• Best practice or performance difference between VB.NET ToString() and & concatenation

  - by slolife

  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"

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• C: difference between (int)x and floor(x)?

  - by igul222

  In C, what is the difference between these two? float myF = 5.6; printf( "%i \n", (int)myF ); // gives me "5" printf( "%ld \n", floor(myF) ); // also "5"? When is one preferable over the other?

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• ms-access: difference between control source and row source

  - by every_answer_gets_a_point

  i have learning reports in access and i don't understand the difference between these two concepts. i understand that the control source is the column? but then what is the row source?

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• Difference between Array and List in scala

  - by Jeriho

  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?

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• What is difference between segment, Volume and Partition ?(In Storage Domain)

  - by Haranadh Gupta

  I have a basic question related to storage domain. Can any one answer what is difference between segment, Volume and Partition ? Thanks.

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• PHP performance difference between passing variables method

  - by Industrial

  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?

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• Difference of using int and uint and when to use

  - by ThickBook

  What is the difference between using int and uint? All the examples I have seen so far are using int for integers. Any advantage of using uint? Thanks.

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• how to calculate a difference between two Zend_Date objects, in months

  - by Vincenzo

  I have two objects of Zend_Date class and I want to calculate the difference between 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!

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• Difference between JavaFX node and UI component?

  - by GrailsTester

  What is the difference between 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.

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• What's the difference between text and html datatypes when using jQuery's ajax()

  - by user169867

  What does jQuery do differently when you specify the datatype as html as opposed to text. I haven't seen a difference but there must be some subtleties I'm missing. If I wish to return a portion of an html page as a string does it matter which I use?

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• difference between throw and throw new Exception()

  - by Strider007

  what is the difference between try{..}/catch{ throw } and try{...}/catch(E){throw new Exception(E.message) }?? regardles that the second shows a message ?

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• Difference between XML and XMI?

  - by zengr

  Can some one shed some light on the difference between XML and XMI? Can XMI be used in place of XML?

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• Difference between Python Generators vs Iterators

  - by newToProgramming

  What is the difference between iterators and generators? Some examples for when you would use each case would be helpful.

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• difference between mvc1 and mvc2

  - by mazhar

  q1) what is difference between 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?

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• crt0.o and crt1.o -- What's the difference?

  - by Earlz

  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 difference between 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?

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• difference between scope and namespace of ruby-on-rails 3 routing

  - by fayer

  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

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• Difference between "and" and "where" in joins

  - by Midhat

  Whats the difference between SELECT DISTINCT field1 FROM table1 cd JOIN table2 ON cd.Company = table2.Name and table2.Id IN (2728) and SELECT DISTINCT field1 FROM table1 cd JOIN table2 ON cd.Company = table2.Name where table2.Id IN (2728) both return the same result and both have the same explain output

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• difference between (int) and convert.toint32 in c#

  - by 4thpage Media and services

  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 difference between both. 1. (int)object 2.convert.toint32(object)

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• Difference between macros and functions in C in relation to instruction memory and speed

  - by DAHANS

  To my understanding the difference between 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?

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• Difference between various string comparisons in Java

  - by Gandalf StormCrow

  Is there a difference between 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).

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• What's the difference between gtk_box_pack_start and gtk_container_add?

  - by user198729

  It seems to me that both functions can be used to add some widget to the container. What's the difference?

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• Difference between Locks, Mutex and Critical Sections

  - by viswanathan

  There is an existing question regarding difference between Mutex and Critical section but it does not deal with Locks also. So i want to know whether Critical sections can be used for thread synchronisation between processes. Also what is meant by signalled states and non-signalled states

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• ms-access: difference between .value and .text

  - by every_answer_gets_a_point

  i am passing values from a textbox into a sql statement in ACCESS i do not understand the difference in the usage of these two properties when i set the the .text property to something, how does the .value property get affected? when i do want something to be displayed in the textbox should i be using the value or text property?

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• how to calculate time difference in PHP

  - by php learner

  I Have to calculate date time difference how to do that in PHP. I need exact hours , mins and secs. any body have the scripts for that please give me :-P

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