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Java: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification
... edited May 23 '17 at 12:26
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answered Aug 27 '12 at 17:42
Maxim MazinMaxim Ma...
HashSet vs LinkedHashSet
...t -------------
size add contains iterate
10 308 91 94
100 178 75 73
1000 216 110 72
10000 711 215 100
---------- LinkedHashSet ----------
size add contains iterate
10 350 65 ...
dyld: Library not loaded: @rpath/libswift_stdlib_core.dylib
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How to randomize (shuffle) a JavaScript array?
...fle algorithm is the Fisher-Yates (aka Knuth) Shuffle.
See https://github.com/coolaj86/knuth-shuffle
You can see a great visualization here (and the original post linked to this)
function shuffle(array) {
var currentIndex = array.length, temporaryValue, randomIndex;
// While there rem...
center aligning a fixed position div
... This helped me out with a RWD project :)
– tctc91
Jan 21 '13 at 15:32
6
where do these 37.5...
Diagnosing Memory Leaks - Allowed memory size of # bytes exhausted
...age collector. It uses reference counting to manage memory. Thus, the most common source of memory leaks are cyclic references and global variables. If you use a framework, you'll have a lot of code to trawl through to find it, I'm afraid. The simplest instrument is to selectively place calls to mem...
Rollback to an old Git commit in a public repo
How can I go about rolling back to a specific commit in git ?
11 Answers
11
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I lose my data when the container exits
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You need to commit the changes you make to the container and then run it. Try this:
sudo docker pull ubuntu
sudo docker run ubuntu apt-get install -y ping
Then get the container id using this command:
sudo docker ps -l
Commit chan...
Why do we have map, fmap and liftM?
... leads to people asking questions like this one); the Functor class is too common to ignore, and beginners are often confused by error messages anyway!
– C. A. McCann
Sep 18 '11 at 19:30
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Painless way to install a new version of R?
...
Just for completeness, there are some ways to prevent you from having this problem. As Dirk said, save your packages in another directory on your computer.
install.packages("thepackage",lib="/path/to/directory/with/libraries")
You...