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Check if an apt-get package is installed and then install it if it's not on Linux
...recently discovered that dpkg-query used to return 1 on a missing package, now ( Ubuntu 12.04 ) returns 0, causing all sorts of trouble on my jenkins build node setup script! dpkg -s returns 0 on package installed, and 1 on package not installed.
– Therealstubot
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How to get svn remote repository URL?
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As of Subversion 1.9 you can now request a specific item from svn info.
svn info --show-item=url
This will output only the remote url. To get rid of the newline at the end, add this extra option:
svn info --show-item=url --no-newline
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How to change the playing speed of videos in HTML5?
...o').defaultPlaybackRate = 2.0;
document.querySelector('video').play();
/* now play three times as fast just for the heck of it */
document.querySelector('video').playbackRate = 3.0;
The above works on Chrome 43+, Firefox 20+, IE 9+, Edge 12+.
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How can I create a keystore?
...od shout on defining -keysize 2048 rather than default 1024 personally I'm now using 4096
– scottyab
Sep 25 '13 at 9:13
9
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What are the reasons why Map.get(Object key) is not (fully) generic
... Of course, uses where the compile time type was not a subclass of K would now fail to compile, but that doesn't invalidate the contract, since contracts implicitly discuss what happens if the code compiles.
– BeeOnRope
Jun 2 '16 at 23:09
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What are the various “Build action” settings in Visual Studio project properties and what do they do
...in Solution Explorer. There are a number of options and it's difficult to know what each one of them will do.
7 Answers
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How can I add an item to a IEnumerable collection?
... only not intend to be modifed. Thank you guys
– ldsenow
Jul 31 '09 at 2:19
7
I had a Connect fea...
How can I make the computer beep in C#?
...rnal speakers, which can't always be counted on. It's definitely good to know these, though!
– a_hardin
Dec 1 '08 at 14:59
1
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How do I reword the very first git commit message?
...d the code to make sure the mistake with copied commit id does not happen. Now the code is even copy-pastable. A word of warning, though: it does not work correctly if there are more than one initial commit (i.e. when you merged two or more unrelated branches)
– fork0
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Switch case with fallthrough?
... until several edits by other users, but it's too late to take it back out now.
– Chindraba
Feb 8 '19 at 5:30
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