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force client disconnect from server with socket.io and nodejs
...ears that the client simply reconnects immediately. Am I misunderstanding what is going on, or is that the expected behaviour?
– kybernetikos
Jan 21 '13 at 8:39
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Wolfram's Rule 34 in XKCD [closed]
...cell and its neighbors match rule 0 above, it turns white/negative/0/false/whatever. The second least significant digit is one, so if the cell and its neighbors match rule 1 above, it turns black/positive/1/true/whatever`, etc. etc. until you see that, for rule 110, if a cell and its neighbors match...
log4j configuration via JVM argument(s)?
What variables do I have to set/pass as arguments to the JVM to get log4j to run properly? And by properly I mean not complain and print to the console. Can I see a typical example?
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Scala how can I count the number of occurrences in a list
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A somewhat cleaner version of one of the other answers is:
val s = Seq("apple", "oranges", "apple", "banana", "apple", "oranges", "oranges")
s.groupBy(identity).mapValues(_.size)
giving a Map with a count for each item in the o...
What are the different usecases of PNG vs. GIF vs. JPEG vs. SVG?
...sparency(and IE6 is not a factor)
And as commented, if you are unsure of what would qualify, try each format with different compression ratios and weigh the quality and size of the picture and choose which one you think is best. I am only giving rules of thumb.
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Android ListView headers
...ve a header item and an event item, so two. getItemViewType should return what type of View we have at the input position.
Android will then take care of passing you the right type of View in convertView automatically.
Here what the result of the code below looks like:
First we have an inte...
Why should the Gradle Wrapper be committed to VCS?
...t is to be able to download gradle without having installed gradle before. What's the problem in having a 50KB-large file in the VCS?
– JB Nizet
Dec 7 '13 at 13:55
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Git - Undo pushed commits
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Exactly what I searched for. Somebody did a faulty commit and push and reverted it again afterwards. The branches could not be merged because of this and I wanted to get the repository to be in the correct state again (and removing t...
Double vs single quotes
...there is no significant performance impact and it will just make you think what you have to use. Just use double-quoted strings.
– Matheus
Jun 10 '19 at 11:07
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How to set JAVA_HOME environment variable on Mac OS X 10.9?
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Yes, that's what I mean. And yes, that will add the variable for all login shells for your user (i.e, pretty much all of the circumstances in which you would want it)
– Adrian Petrescu
Apr 3 '14 at ...