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Why do we have map, fmap and liftM?
...cade after the change @augustss describes was made, and has spent a lot of time helping people who are learning the language now, it's not at all clear that it even helped in any way. Certainly not enough to offset the useless redundancy (which itself leads to people asking questions like this one);...
Exception.Message vs Exception.ToString()
...xceptions.
Any other custom properties added to the exception.
There are times when you want to capture this extra information. The code below handles the above scenarios. It also writes out the properties of the exceptions in a nice order. It's using C# 7 but should be very easy for you to conver...
What are the different usecases of PNG vs. GIF vs. JPEG vs. SVG?
...aving the same file over and over will result in more data being lost over time. It has a palette of thousands of colours and so is great for photographs, but the lossy compression means it's bad for logos and line drawings: Not only will they look fuzzy, but such images will also have a larger file...
String comparison in bash. [[: not found
... like you said. normally i call it with '$sh myscipt.sh'. 2nd time after doing chmod +x myscript.sh i called it with ./myscript.sh
– user1581900
Sep 1 '12 at 20:02
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Internet Explorer 11 detection
...aluated. I've had that in emulation. just close and open the console a few times.
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What are C++ functors and their uses?
...y complex global optimizations, it'd have to dereference the pointer at runtime, and then make the call.
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How to set up Android emulator proxy settings
...his menu has a reoccurring bug which is driving me nuts from mid 2017. Sometimes it works, sometimes not on the same AVD. Only re-creating the AVD could help reliably. At times the proxy falls off in the middle of a session! In the corporate environment that means I'm getting locked out from my acco...
Why do we not have a virtual constructor in C++?
...rk with an object whose dynamic type is different than the static (compile time) type with which it is referred to, it provides behavior that is appropriate for the actual type of object instead of the static type of the object.
Now try to apply that sort of behavior to a constructor. When you cons...
Batch file. Delete all files and folders in a directory
I want to have a batch file that will delete all the folders and files in my cache folder for my wireless toolkit.
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Default constructor with empty brackets
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As mentioned many times, it's a declaration. It's that way for backward compatibility. One of the many areas of C++ that are goofy/inconsistent/painful/bogus because of its legacy.
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