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Safe (bounds-checked) array lookup in Swift, through optional bindings?
If I have an array in Swift, and try to access an index that is out of bounds, there is an unsurprising runtime error:
19 A...
Batch script: how to check for admin rights
...ns
analyzing data returned from FOR loops
searching strings for "Administrator"
using AT (Windows 8 incompatible) or WHOAMI (Windows XP incompatible).
Each of which have their own security, usability, and portability issues.
Testing
I've independently confirmed that this works on:
Window...
Where does Java's String constant pool live, the heap or the stack?
... the concept of a constants pool and the String constant pool used by JVMs to handle String literals. But I don't know which type of memory is used by the JVM to store String constant literals. The stack or the heap? Since its a literal which is not associated with any instance I would assume that i...
java.lang.OutOfMemoryError: Java heap space
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If you want to increase your heap space, you can use java -Xms<initial heap size> -Xmx<maximum heap size> on the command line. By default, the values are based on the JRE version and system configuration. You can find out mor...
How to set environment variables from within package.json
How to set some environment variables from within package.json to be used with npm start like commands?
14 Answers
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How to get a user's client IP address in ASP.NET?
We have Request.UserHostAddress to get the IP address in ASP.NET, but this is usually the user's ISP's IP address, not exactly the user's machine IP address who for example clicked a link. How can I get the real IP Address?
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How to add “active” class to Html.ActionLink in ASP.NET MVC
I'm trying to add an"active" class to my bootstrap navbar in MVC, but the following doesn't show the active class when written like this:
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How many threads is too many?
I am writing a server, and I send each action of into a separate thread when the request is received. I do this because almost every request makes a database query. I am using a threadpool library to cut down on construction/destruction of threads.
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How do I redirect in expressjs while passing some context?
I am using express to make a web app in node.js. This is a simplification of what I have:
8 Answers
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Why is Swift compile time so slow?
...It was one single file (actually one method) that was causing the compiler to go berzek.
Now don't get me wrong. Swift does recompile all your files each time, but the great thing now, is that Apple added real-time compilation feedback over the files it compiles, so Xcode 6 GM now shows which Swift...