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What is PostgreSQL explain telling me exactly?
...
I am mystified why people think slide decks make good technical documentation. A video of the talk might be helpful, but the information density of that slide deck is very close to zero. In the first six slides (1/5th of the total), there is exactly 1 sentenc...
Is it possible to make relative link to image in a markdown file in a gist?
... part varies per file (a quick experimentation confirms it is the git blob id). However you can drop that part resulting in a URL pointing to the latest version:
https://gist.github.com/user/605560c2961cb3025038/raw/img.png
or to take a working example:
https://gist.githubusercontent.com/cben/4...
Multiple controllers with AngularJS in single page app
...e controllers, just use multiple ngController directives:
<div class="widget" ng-controller="widgetController">
<p>Stuff here</p>
</div>
<div class="menu" ng-controller="menuController">
<p>Other stuff here</p>
</div>
You will need to have ...
Access denied for user 'root'@'localhost' while attempting to grant privileges. How do I grant privi
...
Notice how the output of
SHOW GRANTS FOR 'root'@'localhost';
did not say 'ALL PRIVILEGES' but had to spell out what root@localhost has.
GRANT ALL PRIVILEGES will fail, because a user can not grant what he/she does not have,
and the server seem to think something is not here ...
Now, w...
Why does Math.round(0.49999999999999994) return 1?
...oblem
0.5+0.49999999999999994 is exactly 1 in double precision:
static void print(double d) {
System.out.printf("%016x\n", Double.doubleToLongBits(d));
}
public static void main(String args[]) {
double a = 0.5;
double b = 0.49999999999999994;
print(a); // 3fe0000000000000
...
Using Sinatra for larger projects via multiple files
...ng your project
monk add riblits git://github.com/Phrogz/riblits.git
# Inside your empty project directory
monk init -s riblits
File Layout:
config.ru
app.rb
helpers/
init.rb
partials.rb
models/
init.rb
user.rb
routes/
init.rb
login.rb
main.rb
views/
layout.haml
login.haml
m...
Building executable jar with maven?
...an executable artifact, something like this:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClass...
What is the purpose of mock objects?
...s the cook returns the correct dish for each order.
Its harder to test a middle component, like the waiter, that utilizes the behavior of other components. A naive tester might test the waiter component the same way we tested the cook component:
cook <- waiter <- test driver
The test driv...
How do I get ASP.NET Web API to return JSON instead of XML using Chrome?
...
I found when I did this that data provided by a third party with HTML break tags in it ended up with carriage returns. The JSON was then invalid. Better to use the accepted answer if this affects you.
– Stonetip
...
GDB corrupted stack frame - How to debug?
...he PC off the stack. In 32-bit x86 code you just do:
(gdb) set $pc = *(void **)$esp
(gdb) set $esp = $esp + 4
With 64-bit x86 code you need
(gdb) set $pc = *(void **)$rsp
(gdb) set $rsp = $rsp + 8
Then, you should be able to do a bt and figure out where the code really is.
The other 1% of th...