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Creating an abstract class in Objective-C
...s with Objective-C. I'd like to create an abstract class, but that doesn't appear to be possible in Objective-C. Is this possible?
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Easiest way to split a string on newlines in .NET?
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This is my favorite. I wrapped in an extension method and yield return current line: gist.github.com/ronnieoverby/7916886
– Ronnie Overby
Dec 11 '13 at 19:33
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Most efficient way to create a zero filled JavaScript array?
...one liner. Here is what I do:
If I want to pre-fill with a number:
Array.apply(null, Array(5)).map(Number.prototype.valueOf,0);
// [0, 0, 0, 0, 0]
If I want to pre-fill with a string:
Array.apply(null, Array(3)).map(String.prototype.valueOf,"hi")
// ["hi", "hi", "hi"]
Other answers have sug...
Can I run multiple programs in a Docker container?
I'm trying to wrap my head around Docker from the point of deploying an application which is intended to run on the users on desktop. My application is simply a flask web application and mongo database. Normally I would install both in a VM and, forward a host port to the guest web app. I'd like to ...
REST APIs: custom HTTP headers vs URL parameters
...A mobile platform should almost always be the User himself acting, and use appropriate first person credentials for the transaction.
– Nialscorva
Feb 15 '12 at 0:08
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Find current directory and file's directory [duplicate]
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I hate it when I use this to append to sys.path. I feel so dirty right now.
– FlipMcF
Sep 26 '13 at 21:52
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What is the global interpreter lock (GIL) in CPython?
...cally it means that threads in Python are only good for blocking I/O; your app will never go above 1 CPU core of processor usage
– Ana Betts
Aug 18 '09 at 15:26
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How to crop circular area from bitmap in Android
...pported with hardware acceleration. I actually ran into that problem in an app and wondered what was going on. Newer hardware seems to fix this, however (like Google tablets). One possible further cleanup to your code: You don't need the rect-to-rect conversion when drawing the bitmap. You can jus...
What’s the difference between “Array()” and “[]” while declaring a JavaScript array?
...tack overflows (Performance of Array.push vs Array.unshift) which is what happens when the size of the array exceeds the size of the stack, and it has to be re-created. So there can actually, depending on the use case, be a performance increase when using new Array() because you can prevent the over...
Why is String immutable in Java?
...s discussed in Why String is Stored in String Constant Pool article, every application creates too many string objects and in order to save JVM from first creating lots of string objects and then garbage collecting them. JVM stores all string objects in a separate memory area called String constant ...