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How much of a git sha is *generally* considered necessary to uniquely identify a change in a given c
...rgest Git projects, the Linux kernel,
is beginning to need 12 characters out of the possible 40 to stay
unique.
7 digits is the Git default for a short SHA, so that's fine for most projects. The Kernel team have increased theirs several times, as mentioned, because the have several hundred tho...
What does Ruby have that Python doesn't, and vice versa?
...
@Glenn Check out the SO FAQ section "Other people can edit my stuff?!" - this is a Community Wiki.
– bias
Jun 12 '10 at 20:18
...
Same Navigation Drawer in different Activities
...ownload sample code from this tutorial, to see how you can do this.
Without fragments:
This is your BaseActivity Code:
public class BaseActivity extends Activity
{
public DrawerLayout drawerLayout;
public ListView drawerList;
public String[] layers;
private ActionBarDrawerToggle...
How is __eq__ handled in Python and in what order?
...do we know this full algorithm?
The other answers here seem incomplete and out of date, so I'm going to update the information and show you how how you could look this up for yourself.
This is handled at the C level.
We need to look at two different bits of code here - the default __eq__ for objects...
My attempt at value initialization is interpreted as a function declaration, and why doesn't A a(())
... because (x) is a valid C++ expression, while () is not.
To learn more about how languages are defined, and how compilers work, you should learn about Formal language theory or more specifically Context Free Grammars (CFG) and related material like finite state machines. If you are interested in ...
How is Perl's @INC constructed? (aka What are all the ways of affecting where Perl modules are searc
...
Perl interpreter is compiled with a specific @INC default value. To find out this value, run env -i perl -V command (env -i ignores the PERL5LIB environmental variable - see #2) and in the output you will see something like this:
$ env -i perl -V
...
@INC:
/usr/lib/perl5/site_perl/5.18.0/x86_64...
When should I use jQuery deferred's “then” method and when should I use the “pipe” method?
...the second call is made inside a done callback and not accessible from the outside.
The solution would be to use .pipe() instead:
function makeCalls() {
// here we return the return value of `$.ajax().pipe()`, which is
// a new deferred/promise object and connected to the one returned
//...
CSS selector for first element with class
...g a rule with .red:first-of-type will work, but once you add another p without the class:
<div class="home">
<span>blah</span>
<p>dummy</p>
<p class="red">first</p>
<p class="red">second</p>
<p class="red">third</p>
<p...
Clustered vs Non-Clustered
...d values at once which is causing this extra work in various places throughout the table and the fragmentation is killing you. The downside of switching to the PK being clustered in your case, is if you are having insert issues today on PersonIds that vary in value spread throughout the table, if yo...
Difference between sh and bash
... implementation is available from the Heirloom project.
How can you find out what /bin/sh points to on your system?
The complication is that /bin/sh could be a symbolic link or a hard link.
If it's a symbolic link, a portable way to resolve it is:
% file -h /bin/sh
/bin/sh: symbolic link to bash...