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Database Structure for Tree Data Structure
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You mention the most commonly implemented, which is Adjacency List:
https://blogs.msdn.microsoft.com/mvpawardprogram/2012/06/25/hierarchies-convert-adjacency-list-to-nested-sets
There are other models as well, including materialized path and nes...
Change old commit message on Git
I was trying to edit an old commit message as explained here .
5 Answers
5
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How can I use NSError in my iPhone App?
...there are some issues in ARC and casting the id to a BOOL. Any slight ARC compatible variation would be much appreciated.
– NSTJ
Dec 5 '12 at 17:28
7
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Validating URL in Java
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For the benefit of the community, since this thread is top on Google when searching for
"url validator java"
Catching exceptions is expensive, and should be avoided when possible. If you just want to verify your String is a valid URL, you can us...
Is there a way to get the XPath in Google Chrome?
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I guess Chrome copied most of the Firebug command-line commands: getfirebug.com/wiki/index.php/Command_Line_API
– huyz
Sep 3 '11 at 8:35
102
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Locate the nginx.conf file my nginx is actually using
...the brew package manager (its an osx box) and the other seems to have been compiled and installed with the nginx packaged Makefile. I searched for all of the nginx.conf files on the server, but none of these files define the parameters that nginx is actually using when I start it on the server. Wher...
Are static fields open for garbage collection?
...ch paragraph states that? (Please continue the discussion on stackoverflow.com/questions/405364/… )
– Pacerier
Aug 24 '14 at 11:10
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What's the (hidden) cost of Scala's lazy val?
...e (rather than bytecode):
class LazyTest {
lazy val msg = "Lazy"
}
is compiled to something equivalent to the following Java code:
class LazyTest {
public int bitmap$0;
private String msg;
public String msg() {
if ((bitmap$0 & 1) == 0) {
synchronized (this) {
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How do I programmatically shut down an instance of ExpressJS for testing?
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when testing server, check out github.com/visionmedia/supertest it will let you test w/o launching actual server
– Lukas Liesis
Nov 1 '16 at 13:54
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How do I make Git treat a file as binary?
...git config --global core.attributesfile ~/.gitattributes see stackoverflow.com/questions/28026767/…
– jan-glx
Oct 9 '16 at 15:01
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