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• AppendTo does not work as desired

  - by Gokul

  When I say, msg.appendTo(ele.parent().next()), the msg successfully gets appended to a <p> with class=foo How can I specify it explicitly in the statement? I tried msg.appendTo(ele.parent().next().find('.foo')); but it doesn't work

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• XML allows for external entities; what about XHTML?

  - by xtofl

  This question about web page 'inclusion' triggered my curiosity. The XML allows you to specify a reference to an 'external' portion. Can you do the same in XHTML, then? XML example: <!ENTITY foo SYSTEM "http://www.mydomain.com/logo.gif" NDATA GIF87A> ... <SOMETHING>&foo;</SOMETHING>

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• How to get attributes from parent?

  - by bribon

  Hi all, Let's say we have these classes: class Foo(object): _bar = "" def __init__(self): self.bar = "hello" def getBar(self): return self._bar def setBar(self, bar): self._bar = bar def getAttributes(self): for attr in self.__dict__: print attr bar = property(getBar, setBar) class Child(Foo): def __init__(self): super(Child, self).__init__() self.a = "" self.b = "" if I do something like: child = Child() child.getAttributes() I get all the attributes from parent and child. How could I get the attributes only from the parent? Thanks in advance!

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• this["var"+"name"] in java

  - by Maxim

  In AS3 I can write this["foo"] for acces to varible foo. I can construct any string in brackets. Is there a way to do this in Java?

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• Mercurial: include revisions in diff?

  - by David Wolever

  Is there some way to ask Mercurial to show the revisions being diffed in the output? For example: $ hg diff -r trunk:development diff -r 08d51ecf22cf:ff5673e55b9f --git a/foo.c b/foo.c ... Or something similar? I've found that there have been a few times that I've taken a diff (eg, to review), but have later been unable to recreate it because I've forgotten which revisions it was taken against.

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• Can this be done in 1 line? [PHP]

  - by Angelo

  Can this be done in 1 line with PHP? Would be awesome if it could: $out = array("foo","bar"); echo $out[0]; Something such as: echo array("foo","bar")[0]; Unfortunately that's not possible. Would it be possible like this? So I can do this for example in 1 line: echo array(rand(1,100), rand(1000,2000))[rand(0,1)];

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• How to remove these warning when erasing a c string

  - by nunos

  How can I remove these warnings? char foo[10]; int k; for (k = 0; foo[k] != NULL; k++) //comparison between pointer and integer msg2[k] = NULL; //assignment makes integer from pointer without a cast Thanks.

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• Dependency Injection and Moqing

  - by rkrauter

  The way I understand it, DI allows you to use an IoC container to do something like If a constructor needs an IFoo, use a concrete class Foo : IFoo. But how is a Mock object using Moq different? Doesn't it also use DI to create a fake Foo? Thanks.

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• How to quickly parse a list of strings

  - by math

  If I want to split a list of words separated by a delimiter character, I can use >>> 'abc,foo,bar'.split(',') ['abc', 'foo', 'bar'] But how to easily and quickly do the same thing if I also want to handle quoted-strings which can contain the delimiter character ? In: 'abc,"a string, with a comma","another, one"' Out: ['abc', 'a string, with a comma', 'another, one'] Related question: How can i parse a comma delimited string into a list (caveat)?

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• Python indentation in "empty lines"

  - by niscy

  Which is preferred ("." indicating whitespace)? A) def foo(): x = 1 y = 2 .... if True: bar() B) def foo(): x = 1 y = 2 if True: bar() My intuition would be B (that's also what vim does for me), but I see people using A) all the time. Is it just because most of the editors out there are broken?

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• Serialize the @property methods in a Python class.

  - by ashchristopher

  Is there a way to have any @property definitions passed through to a json serializer when serializing a Django model class? example: class FooBar(object.Model) name = models.CharField(...) @property def foo(self): return "My name is %s" %self.name Want to serialize to: [{ 'name' : 'Test User', 'foo' : 'My name is Test User', },]

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• Ruby parse order

  - by bresc

  Hi, given this code: class Foo def bar return Bar.new end end class Bar ... end I get this error: NameError: uninitialized constant Bar This obviously works if I put Bar before Foo but that is not a real solution though. Any ideas on how to solve this without considering the order? Many thanks.

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• Sinatra programatically get port and other information about service

  - by Poul

  I have a sinatra service foo.rb To run it I on a different port I would type "ruby foo.rb -p 5000". While the program is running I would like to be able to get the port (in this case 5000) and other information. Is there a way to get info like this while the app is running? Thanks

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• Assignment in conditional operator

  - by DuoSRX

  I've seen a lot this kind of code recently : if ($foo = $bar->getFoo()) { baz($foo); } Is this considered good or bad practice ? For example, Netbeans IDE give a notice if you use this kind of code : Possible accidental assignment, assignments in conditions should be avoided What do you think ?

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• CodeContracts: How to fullfill Require in Ctor using this() call?

  - by mafutrct

  I'm playing around with Microsoft's CodeContracts and encountered a problem I was unable to solve. I've got a class with two constructors: public Foo (public float f) { Contracts.Require(f > 0); } public Foo (int i) : this ((float)i) {} The example is simplified. I don't know how to check the second constructor's f for being 0. Is this even possible with Contracts?

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• any stl/boost functors to call operator()

  - by Voivoid

  template <typename T> struct Foo { void operator()(T& t) { t(); } }; Is there any standart or boost functor with the similar implementation? I need it to iterate over container of functors: std::for_each(beginIter, endIter, Foo<Bar>()); Or maybe there are other way to do it?

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• How to run jQuery onClick? Need to pass a variable to run .ajax

  - by user205307

  I'm trying to run .ajax and insert a data element from the onClick of an item from the page. Whats the best way to do this? Something like this: function grabinfo(foo){ $.ajax({ url: "infospitter", method: "GET", data: "id="+foo, success: function(html){ $(#showstuff).html(html); } }); } <input onClick="javascript:grabinfo(18343)" /> // and on page each item will have this button input

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• How do I branch if message.properties-code exists

  - by skurt

  I want to branch if a message-property-code does exist or not. <g:if test="${message(code: 'default.code.foo')}"> true </g:if><g:else> false </g:else> should answer true if there a message property named default.code.foo and false if not. It fails because it answers the code if there is no property for it.

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• In Vim, how to swap 2 non adjacent patterns?

  - by ThG

  I have lines of text, all with the same structure, and would like to make a permutation of 2 elements on all lines: 1257654 some text (which may be long) #Foo 1543098 some other text #Barbar 1238769 whatever #Baz 2456874 something else #Quux I want to obtain : #Foo some text (which may be long) 1257654 #Barbar some other text 1543098 #Baz whatever 1238769 #Quux something else 2456874 This is where I am stuck : :%s/\(\d\{7\}\)\(#.\{-}\)/\2\1/ Where did I go wrong ?

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• How would I reverse an array of characters?

  - by jreicher

  Lets say I have an array of characters: char* foo = "abcdefg"; How would I reverse them but keep them within the array "foo"?

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• Are PHP5 objects passed by reference?

  - by morpheous

  I cant seem to get any consistent info on this. Different sources appear to say different things and trhe venerable php.net iteslf (appears) not to explicitly state this - although I must admit, I only had a quick look. In cases where I am passing around 'heavy' objects, I need to pass by reference, but I dont want to keep typing: function foo(TypeName& $obj) if I can get away with simply, function foo(TypeName $obj) So what does the standard say?

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• Initialising a reference member with itself legal?

  - by epronk

  This was a bug I found in a server application using Valgrind. struct Foo { Foo(const std::string& a) : a_(a_) { } const std::string& a_; }; with gcc -Wall you don't get a warning. Why is this legal code?

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• C++ static array leading to memory leak?

  - by MDonovin

  Lets say I have something like... void foo() { char c[100]; printf("this function does nothing useful"); } When foo is called, it creates the array on the stack, and when it goes out of scope, is the memory deallocated automatically? Or is c destroyed, but the memory remains allocated, with no way to access it/get it back except restarting the computer?

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• Multithreaded ActiveRecord requests in rspec

  - by jeem

  I'm trying to recreate a race condition in a test, so I can try out some solutions. I find that in the threads I create in my test, ActiveRecord always returns 0 for counts and nil for finds. For example, with 3 rows in the table "foos": it "whatever" do puts Foo.count 5.times do Thread.new do puts Foo.count end end end will print 3 0 0 0 0 0 test.log shows the expected query, the expected 6 times: SELECT count(*) AS count_all FROM `active_agents` Any idea what's going on here?

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• best scala idiom for find & return

  - by IttayD

  This is something I encounter frequently, but I don't know the elegant way of doing. I have a collection of Foo objects. Foo has a method bar() that may return null or a Bar object. I want to scan the collection, calling each object's bar() method and stop on the first one returning an actual reference and return that reference from the scan. Obviously: foos.find(_.bar != null).bar does the trick, but calls #bar twice.

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