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Why does .NET foreach loop throw NullRefException when collection is null?
...I think of it, returning null for a collection is an error. The way it is now, the runtime gives you a meaningful exception in this case, but it's easy to work around (ie: above) if you don't like this behavior. If the compiler hid this from you, you'd lose the error checking at runtime, but there...
Serializing class instance to JSON
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The basic problem is that the JSON encoder json.dumps() only knows how to serialize a limited set of object types by default, all built-in types. List here: https://docs.python.org/3.3/library/json.html#encoders-and-decoders
One good solution would be to make your class inherit from J...
How do I exit a WPF application programmatically?
...he few years I've been using C# (Windows Forms), I've never used WPF. But, now I love WPF, but I don't know how I am supposed to exit my application when the user clicks on the Exit menu item from the File menu.
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List of macOS text editors and code editors [closed]
...the operating system, but at the same time, is the wonderful Emacs we all know and love. Currently it requires Leopard with the latest release, but most people have upgraded by now anyway. You can fetch it here.
Alternatively, if you want to use Vim on OS X, I've heard good things about MacVim.
Be...
Why is the console window closing immediately once displayed my output?
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With 2019 it works now even for WPF projects: pastebin.com/FpAeV0cW. But you have to install .NET Core 3.
– Vlad
Oct 1 '19 at 10:00
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Get the client's IP address in socket.io
..., is there an easy way to get the IP address of an incoming connection? I know you can get it from a standard HTTP connection, but socket.io is a bit of a different beast.
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Override browser form-filling and input highlighting with HTML/CSS
I have 2 basic forms -- sign in and sign up, both on the same page. Now, I have no problem with the sign in form auto-filling, but the sign up form auto fills as well, and I don't like it.
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Better way to get type of a Javascript variable?
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Ah, I'd forgotten about that - thank you, it's now included.
– Vix
Feb 26 '16 at 9:20
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Docker - how can I copy a file from an image to a host?
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I don't know why this is not selected as the correct answer.
– CentAu
Apr 2 '19 at 16:14
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The transaction log for the database is full
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As I recall now, the additional file mostly enabled us to access another, bigger drive.
– Mike Henderson
Jul 16 '13 at 11:49
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