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Best way to give a variable a default value (simulate Perl ||, ||= )
...forehand so don't use it with anything heavy as a second parameter, like a file_get_contents or something. In those cases, you're better off with isseting.
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How to update npm
...chpad.net/chris-lea/node.js/ubuntu bionic Release' does not have a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details. for Ubuntu 18.04
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How to update Ruby to 1.9.x on Mac?
...vm.
It's a great way to manage multiple Rubies and gems sets without colliding with the system version.
I'll add that now (4/2/2013), I use rbenv a lot, because my needs are simple. RVM is great, but it's got a lot of capability I never need, so I have it on some machines and rbenv on my deskto...
What does git push origin HEAD mean?
I found, in the official guide :
1 Answer
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Are there any HTTP/HTTPS interception tools like Fiddler for mac OS X? [closed]
...n Mac and Linux. Also, the very latest version of Fiddler can import .PCAP files captured from WireShark or other tools run on the Mac.
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Paste text on Android Emulator
...ne with Android command line tools or via editing the ~/.android/avd/ .ini files?
– Chloe
Jan 15 '18 at 18:53
@Chloe S...
Handling applicationDidBecomeActive - “How can a view controller respond to the app becoming Active?
...y its behavior based on those properties (such as looking up the name of a file that needs to be closed)." Calling deinit is not ok
– Dan Rosenstark
Jun 1 '16 at 20:20
add a c...
Android emulator and virtualbox cannot run at same time
...me>\AppData\Local\Android\sdk\extras
In that directory is some kind of file like intelhaxm-android.exe. Run it.
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Markdown: continue numbered list
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Unfortunately, this does not work with GitHub readme files. :(
– Nostalg.io
Feb 21 '17 at 4:15
W...
Undoing a git rebase
...rence:
git reset --hard "HEAD@{5}"
You can check the history of the candidate old head by just doing a git log HEAD@{5} (Windows: git log "HEAD@{5}").
If you've not disabled per branch reflogs you should be able to simply do git reflog branchname@{1} as a rebase detaches the branch head before r...