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MySQL show current connection info
...(GPL)
Protocol version: 10
Connection: localhost via TCP/IP
Server characterset: latin1
Db characterset: latin1
Client characterset: gbk
Conn. characterset: gbk
TCP port: 3306
Uptime: 7 min 16 sec
Threads: 1 Questions: 21 Slow queri...
Where does Jenkins store configuration files for the jobs it runs?
...ns installation folder, you could create a simple jenkins job and run a script that tars all the config files for the jobs: "tar -zcvf jenkins-jobs-configs.tar.gz $(find ${JENKINS_HOME}/jobs -name config.xml -maxdepth 2) ". You could then archive jenkins-jobs-configs.tar.gz
– ...
How to disable anchor “jump” when loading a page?
...identical to tab names/href values) to my nav links. I ended up adding a 1-char suffix to my tabs, and then substringing the values by 1 char (str.slice(0,-1) when comparing them to window.location.hash This way the hashes are different and no jumping occurs.
– developer10
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What is the advantage to using bloom filters?
... bits, for small integers, to an
arbitrary number of bits, such as for
strings (tries are an exception, since
they can share storage between
elements with equal prefixes). Linked
structures incur an additional linear
space overhead for pointers. A Bloom
filter with 1% error and an opti...
Where to put include statements, header or source?
...def.h> in the header file.
Your function uses strlen. Then #include <string.h> in the source file.
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How can I get query string values in JavaScript?
Is there a plugin-less way of retrieving query string values via jQuery (or without)?
73 Answers
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Boolean vs boolean in Java
... Booleans, conditional operators and autoboxing):
public static void main(String[] args) throws Exception {
Boolean b = true ? returnsNull() : false; // NPE on this line.
System.out.println(b);
}
public static Boolean returnsNull() {
return null;
}
Use Boolean when you need an object, e...
What are free monads?
...gives you a way to "get out" of it.
More generally, if X is a Y with some extra stuff P, then a "free X" is a a way of getting from a Y to an X without gaining anything extra.
Examples: a monoid (X) is a set (Y) with extra structure (P) that basically says it has an operation (you can think of add...
When is the finalize() method called in Java?
...uld make sense is if your class manages some external resource (like a TCP/IP connection, file ... anything that the Java GC can't handle). In those cases the Closable interface (and the idea behind it) is probably what you want: make .close() close/discard the resource and require the user of your ...
In-memory size of a Python structure
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@AlexMartelli Hi Alex! .. Why minimum size of a char in python is 25 bytes. >>> getsizeof('a') gives 25 and >>> getsizeof('ab') gives 26 `
– Grijesh Chauhan
Jan 17 '13 at 5:13
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