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What is copy-on-write?

...gy used in computer programming. The fundamental idea is that if multiple callers ask for resources which are initially indistinguishable, you can give them pointers to the same resource. This function can be maintained until a caller tries to modify its "copy" of the resource, at which point a true...
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Inherit docstrings in Python class inheritance

...out this a while ago, and a recipe was created. Check it out here. """ doc_inherit decorator Usage: class Foo(object): def foo(self): "Frobber" pass class Bar(Foo): @doc_inherit def foo(self): pass Now, Bar.foo.__doc__ == Bar().foo.__doc__ == Foo.foo.__doc__...
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pass post data with window.location.href

...n attribute of the form to the URL and the method attribute to POST, then call the submit method on the form tag. share | improve this answer | follow | ...
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How do I bind a WPF DataGrid to a variable number of columns?

... property is ReadOnly, like everyone noticed, I made an Attached Property called BindableColumns which updates the Columns in the DataGrid everytime the collection changes through the CollectionChanged event. If we have this Collection of DataGridColumn's public ObservableCollection<DataGrid...
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WatiN or Selenium? [closed]

.... It will be a major upgrade to the current CTP 2.0 versions and will basically give you the same functionality to automate FireFox and IE as version 1.3.0 offers for automating IE. So no concerns there. Hope this helps in making your choice Jeroen van Menen Lead dev WatiN ...
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possible EventEmitter memory leak detected

... I am using process.on('uncaughtException', callback); – Riz Mar 19 '12 at 10:51 ...
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MVVM in WPF - How to alert ViewModel of changes in Model… or should I?

... RaisePropertyChanged("ViewModelCopyOfSomeProperty"); } But typically this is only needed if more than one object will be making changes to the Model's data, which is not usually the case. If you ever have a case where you don't actually have a reference to your Model property to attach t...
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How to structure a express.js application?

... it. Of those, I think Twitter's matador is structured pretty well. We actually used a very similar approach to how they load up parts of the app. derby.js also looks extremely interesting. It's akin to meteor without all of the hype and actually gives credit where credit is due (notably, node and e...
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Maintain the aspect ratio of a div with CSS

...></div> For other aspect ratios, you can use the following table to calculate the value for height according to the width of the element : aspect ratio | multiply width by ----------------------------------- 1:1 | 1 1:3 | 3 4:3 | ...
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Create a custom event in Java

...else in the package interface ThrowListener { public void Catch(); } /*_____________________________________________________________*/class Thrower { //list of catchers & corresponding function to add/remove them in the list List<ThrowListener> listeners = new ArrayList<ThrowLis...