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Difference between wait() and sleep()
...y) must happen in a block synchronized on the monitor object whereas sleep does not:
Object mon = ...;
synchronized (mon) {
mon.wait();
}
At this point the currently executing thread waits and releases the monitor. Another thread may do
synchronized (mon) { mon.notify(); }
(on the same mo...
Why does ++[[]][+[]]+[+[]] return the string “10”?
...t ++[] throws an error. This is remarkable because it looks like ++[[]][0] does boil down to ++[]. Do you perhaps have any idea why ++[] throws an error whereas ++[[]][0] does not?
– pimvdb
Sep 9 '11 at 14:42
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What does the “|” (single pipe) do in JavaScript?
Why does 0.5 | 0 return zero, but any integer (including negative) returns the input integer? What does the single pipe ("|") do?
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Does Android support near real time push notification?
...
It does it by opening a TCP/IP connection and leaving it open. It doesn't poll, although it does have to occasionally send a small ping message down the connection to keep it alive.
– dalelane
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Does a “Find in project…” feature exist in Eclipse IDE?
Does Eclipse have a way to search a whole project for some text like Xcode's "find in project" feature?
16 Answers
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Maven does not find JUnit tests to run
I have a maven program, it compiles fine. When I run mvn test it does not run any tests (under TESTs header says There are no tests to run. ).
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What does the construct x = x || y mean?
I am debugging some JavaScript, and can't explain what this || does?
12 Answers
12
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What does each of the [y,n,q,a,d,/,K,j,J,g,e,?] stand for in context of git -p
When using -p mode of git add -p or git stash -p what does each of the letters stand for?
2 Answers
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HttpUtility does not exist in the current context
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My solution Explorer tree does not contain "Reference"
– Paul Gorbas
Apr 13 '18 at 19:03
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What does it mean that Javascript is a prototype based language?
...reated it, forming a chain. When an object is asked for a property that it does not have, its parent object will be asked... continually up the chain until the property is found or until the root object is reached.
Each function in JavaScript (which are objects themselves) actually has a member cal...