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How does the socket API accept() function work?

...r IP : Server Port So while the Server IP and Server Port are constant in all accepted connections, the client side information is what allows it to keep track of where everything is going. Example to clarify things: Say we have a server at 192.168.1.1:80 and two clients, 10.0.0.1 and 10.0.0.2. ...
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What is the difference between '>' and a space in CSS selectors?

...o scenarios div > span { } vs. div span { } Here, the (space) selects all the all the <span> elements inside <div> element even if they are nested inside more than one element. The > selects all the children of <div> element but if they are not inside another element. Take...
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Django-DB-Migrations: cannot ALTER TABLE because it has pending trigger events

...son for this maybe because you try to set a column to NOT NULL when it actually already has NULL values. share | improve this answer | follow | ...
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How to do relative imports in Python?

... the module were a top level module, regardless of where the module is actually located on the file system. In Python 2.6, they're adding the ability to reference modules relative to the main module. PEP 366 describes the change. Update: According to Nick Coghlan, the recommended alternative is ...
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Hiding textarea resize handle in Safari

...g textarea components in my application, and I control their height dynamically. As the user types, the height is increased whenever there is enough text. This works fine on IE, Firefox, and Safari. ...
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Defining private module functions in python

...s, a simple #define private public line before #includeing your .h file is all it takes for wily coders to make hash of your "privacy"...!-)) share | improve this answer | fo...
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mkdir's “-p” option

...p created both, hello and goodbye This means that the command will create all the directories necessaries to fulfill your request, not returning any error in case that directory exists. About rlidwka, Google has a very good memory for acronyms :). My search returned this for example: http://www.cs...
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public friend swap member function

...truct vector { void swap(vector&) { /* swap members */ } }; Naturally, then, our class should too, right? Well, not really. The standard library has all sorts of unnecessary things, and a member swap is one of them. Why? Let's go on. What we should do is identify what's canonical, and w...
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How do I determine the size of an object in Python?

...turn the size of an object in bytes. The object can be any type of object. All built-in objects will return correct results, but this does not have to hold true for third-party extensions as it is implementation specific. Only the memory consumption directly attributed to the object is accounted for...
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How to pass arguments to addEventListener listener function?

...you have more code that operates on the same someVar variable next to the call to addEventListener) var someVar; someVar = some_other_function(); alert(someVar); someObj.addEventListener("click", function(){ some_function(someVar); }, false); ...