Search Results

Search found 6186 results on 248 pages for 'syntax'.

Page 117/248 | < Previous Page | 113 114 115 116 117 118 119 120 121 122 123 124  | Next Page >

  • Why MyModel.all works in Rails ?

    - by AntonAL
    Hi, i don't understand this little thing: Suppose, we have "Person" model class Person < ActiveRecord::Base end Why Person.all works ? Person.all.each { |p| do_something } This syntax tells us, that we have Person class-object instanciated somewhere ? Or is it some convention over configuration case ?

    Read the article

  • Should I invest time in learning Java language these days? (question from a greenhorn)

    - by dave-keiture
    Hi experts, Assuming you've already had a chance to look through the lambda syntax proposed for Java7 (and the other things that have happened with Java, after Oracle has bought Sun + obvious problems in Java Community Process), what do you think is the future of Java language? Should I, as a Java greenhorn, invest time in learning Java language (not talking about the core JVM, which definitely will survive anything, and worth investments), or concentrate on Scala, Groovy, or other hybrid languages on the JVM platform (I've came into Java world from PHP/Ruby). Thanks in advance.

    Read the article

  • Strongly typed `enum`s in VS10?

    - by Motti
    This question pointed to a wiki page for C++0x support which lists Strongly typed enums as Partially supported in VS10. However this creates a compilation error: enum class boolean { no, yes, maybe }; Any idea what constitutes partial support when the basic syntax isn't accepted?

    Read the article

  • whats wrong with this jquery

    - by Gandalf StormCrow
    I'm getting syntax error in firebug here is the code : $('#moderator-attention').live('toogle', function(){ function () { $(".moderator-tex").show(); }, function () { $(".moderator-tex").hide(); } }); I want to create a toogle function, when button is clicked then textarea with class moderator-tex should appear .. and if other button is clicked then should be hidden ..

    Read the article

  • Prism's ItemsControl seems to have a xaml parse error. Why?

    - by user158103
    I am at a loss as to why my Shell.xaml's ItemsControl is causing a parse error. I know the syntax is correct because I copied the Silvelright project files from a working project. Right now my only guess is that ItemsControl is dependent on something else. Here is the relevant xaml line for ItemsControl. <ItemsControl x:Name="Region" VerticalAlignment="Center" HorizontalAlignment="Center" Regions:RegionManager.RegionName="Region"/>

    Read the article

  • Error in C Program

    - by Manoj
    Hi, while(((long)(1000*ratio*((long)clock()-(long)t0))%100)/1000)<Data_Read_Rate); The above line is generating the following error: "Syntax Error before < token". Why is this error coming up? I use MINGW32 for development(GCC compiler). Thanks...

    Read the article

  • Python: Split, strip, and join in one line

    - by PandemoniumSyndicate
    I'm curious if their is some python magic I may not know to accomplish a bit of frivolity given the line: csvData.append(','.join([line.split(":").strip() for x in L])) I'm attempting to split a line on :, trim whitespace around it, and join on , problem is, since the array is returned from line.split(":"), the for x in L #<== L doesn't exist! causes issues since I have no name for the array returned by line.split(":") So I'm curious if there is a sexy piece of syntax I could use to accomplish this in one shot? Cheers!

    Read the article

  • Does Java have a .new operator?

    - by chickeninabiscuit
    I came across this code today whilst reading Accelerated GWT (Gupta) - page 151. public static void getListOfBooks(String category, BookStore bookStore) { serviceInstance.getBooks(category, bookStore.new BookListUpdaterCallback()); } public static void storeOrder(List books, String userName, BookStore bookStore) { serviceInstance.storeOrder(books, userName, bookStore.new StoreOrderCallback()); } What are those new operators doing there? I've never seen such syntax, can anyone explain?

    Read the article

  • Can a sql server aggregate udf be passed in multiple parameters?

    - by Burg
    I am trying to write an aggregate udf for using Sql Server 2008 and C# 3.5 that implodes an aggregation of data. The kind of syntax I am looking for is: SELECT [dbo].[Implode]([Id], ',') FROM [dbo].[Table] GROUP BY [ForeignID] where the second parameter is the delimiter for the aggregate function. And example return value would be something like: 1,4,56 Is there a way to have multiple parameters in an aggregate udf?

    Read the article

  • multiple parameters type

    - by romerun
    I'm trying to write something like this: type 'a 'b xxx = {aaa: 'a: bbb: 'b: ccc: int};; It does not compile. Is it just syntax error, or they don't allow multiple paramters on type ? Then why ?

    Read the article

  • Python loop | "do-while" over a tree

    - by johannix
    Is there a more Pythonic way to put this loop together?: while True: children = tree.getChildren() if not children: break tree = children[0] UPDATE: I think this syntax is probably what I'm going to go with: while tree.getChildren(): tree = tree.getChildren()[0]

    Read the article

  • How to change aif to be able to access 'it' within the macrocall without making 'it' public in the package

    - by Sim
    If you put the aif code presented in onlisp in a package and try to use it in another you run in the problem that packagename:it is not external. (in-package :packagename) (defmacro aif (test-form then-form &optional else-form) ‘(let ((it ,test-form)) (if it ,then-form ,else-form))) wanted call syntax (in-package :otherpackage) (aif (do-stuff) (FORMAT t "~a~%" it) (FORMAT t "just got nil~%")) How can I fix this behavior in code, without making the variable it external in the package declaration and beeing able to access it just by it instead of packagename:it?

    Read the article

  • .Net Windows application

    - by ksmps
    I am trying to Insert a record in MS Access DB using OLEDB in windows application. I am getting an error "missing semicolon at end of sql statement" there is no syntax error in sql insert statment.

    Read the article

< Previous Page | 113 114 115 116 117 118 119 120 121 122 123 124  | Next Page >