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Good MapReduce examples [closed]
...duce function, the mapreduce framework groups
all of the values together by key, so if the map functions output the
following key:value pairs:
3 : the
3 : and
3 : you
4 : then
4 : what
4 : when
5 : steve
5 : where
8 : savannah
8 : research
They get grouped as:
3 : [the, and, you]
4 : [th...
Remove Select arrow on IE
...
In IE9, it is possible with purely a hack as advised by @Spudley. Since you've customized height and width of the div and select, you need to change div:before css to match yours.
In case if it is IE10 then using below css3 it is possible
select::-ms-expand {
display: no...
Using [UIColor colorWithRed:green:blue:alpha:] doesn't work with UITableView seperatorColor?
...
You need to divide by 255.0
Because I hardly ever use values between 1.0 and 0.0, I created a very simple UIColor category that does the messy looking division by itself: (from http://github.com/Jon889/JPGeneral)
//.h file
@interface UIColor ...
What is an .axd file?
...ever names you like, .axd has the upside of working on IIS6 out of the box by default (IIS6 passes requests for *.axd to the ASP.NET runtime by default). Using an arbitrary path for the handler, like Document.pdf (or really anything except ASP.NET-specific extensions), requires more configuration wo...
What is the “main file” property when doing bower init?
... commands bower list --json andbower list --paths, so they can be used
by build tools.
Preprocessor files like CoffeeScript should be compiled.Do not include
minified files.Filenames should not be versioned (Bad:
package.1.1.0.js; Good: package.js).
I think it's more for the package m...
How can I use threading in Python?
...end.
Implementation
Parallel versions of the map function are provided by two libraries:multiprocessing, and also its little known, but equally fantastic step child:multiprocessing.dummy.
multiprocessing.dummy is exactly the same as multiprocessing module, but uses threads instead (an important...
Why and How to avoid Event Handler memory leaks?
I just came to realize, by reading some questions and answers on StackOverflow, that adding event handlers using += in C# (or i guess, other .net languages) can cause common memory leaks...
...
XPath OR operator for different nodes
... think of your result as being a or b, but rather that it could be located by a or b. Logical or means it could be located by a or b or both. Logical xor (eXclusive OR) means it could be located by either a or b, but not both. Logical and means it could be located by both a and b.
...
What's the point of Spring MVC's DelegatingFilterProxy?
...<http auto-config="true" use-expressions="true">
as it is allowed by http://www.springframework.org/schema/security/spring-security-3.0.xsd, will do the trick.
When Spring loads the application context using XML files, if it finds a element, it will try to set up the HTTP security, that i...
Better explanation of when to use Imports/Depends
...ctive attempts to ensure that a function from another package is available by attaching the other package to the main search path (i.e. the list of environments returned by search()). This strategy can, however, be thwarted if another package, loaded later, places an identically named function earli...