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How to define optional methods in Swift protocol?
Is it possible in Swift? If not then is there a workaround to do it?
19 Answers
19
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PowerShell script to return versions of .NET Framework on a machine?
... 4.0 (if you have them both installed):
Get-ChildItem 'HKLM:\SOFTWARE\Microsoft\NET Framework Setup\NDP' -recurse |
Get-ItemProperty -name Version,Release -EA 0 |
Where { $_.PSChildName -match '^(?!S)\p{L}'} |
Select PSChildName, Version, Release
Based on the MSDN article, you could build a looku...
Why is conversion from string constant to 'char*' valid in C but invalid in C++
...ng to a string literal will typically get your program aborted on a modern OS, so allowing code to (try to) write there doesn't add any meaningful flexibility.
– Jerry Coffin
Jan 6 '14 at 7:30
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invalid target release: 1.7
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You need to set JAVA_HOME to your jdk7 home directory, for example on Microsoft Windows:
"C:\Program Files\Java\jdk1.7.0_40"
or on OS X:
/Library/Java/JavaVirtualMachines/jdk1.7.0_40.jdk/Contents/Home
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What are the differences between node.js and node?
...just to tell you the difference between node and nodejs packages on Debian OS.
node
Amateur Packet Radio Node program.
Package details link: https://packages.debian.org/source/wheezy/node
nodejs
Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable netw...
Assigning default values to shell variables with a single command in bash
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Very close to what you posted, actually:
FOO=${VARIABLE:-default} # If variable not set or null, use default.
Or, which will assign default to VARIABLE as well:
FOO=${VARIABLE:=default} # If variable not set or null, set it to...
How does Trello access the user's clipboard?
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Disclosure: I wrote the code that Trello uses; the code below is the actual source code Trello uses to accomplish the clipboard trick.
We don't actually "access the user's clipboard", instead we help the user out a bit by selec...
What is a 'thunk'?
...ter to get it to point to the right place. A thunk can do this.
dynamic closures -- when you build a dynamic closure, the closure function needs to be able to get at the context where it was created. A small thunk can be built (usually on the stack) which sets up the context info in some register(...
How can i use iptables on centos 7? [closed]
I installed CentOS 7 with minimal configuration (os + dev tools). I am trying to open 80 port for httpd service, but something wrong with my iptables service ... what's wrong with it? What am I doing wrong?
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Should the .gradle folder be added to version control?
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All of the world's iOS debs converting to Android, thank you! :)
– Fattie
Jun 5 '14 at 10:41
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