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How does the MapReduce sort algorithm work?
... nothing architectures, have made some controversial assertions about the breadth of problems that MapReduce can be used for. They called its interface too low-level, and questioned whether it really represents the paradigm shift its proponents have claimed it is. They challenge the MapReduce propon...
map vs. hash_map in C++
...clear() 150K unsigned integer keys and float values. I am just running and reading someone else's code.
This is how it includes hash_map.
#include "StdAfx.h"
#include <hash_map>
I read this here
https://bytes.com/topic/c/answers/570079-perfomance-clear-vs-swap
saying that clear() is order...
Do I cast the result of malloc?
...type in this case.
It adds clutter to the code, casts are not very easy to read (especially if the pointer type is long).
It makes you repeat yourself, which is generally bad.
It can hide an error if you forgot to include <stdlib.h>. This can cause crashes (or, worse, not cause a crash until w...
Logical operator in a handlebars.js {{#if}} conditional
...
Note that this simply doesn't work with bound properties (read, Ember bindings). It's fine with literal values, but doesn't resolve model properties (tested with Ember 1.0.0-rc.8 and Handlebars 1.0.0), and registerBoundHelper can't deal with Handlebars syntax. The workaround is to c...
What is the difference between declarative and imperative programming? [closed]
...e implementation details. In the second example, the code is arguably more readable; however, LINQ does not give you control over what happens behind the scenes. You must trust that LINQ will provide the requested result.
sh...
How to disable / enable dialog negative positive buttons?
...
don't work - also I read code at least 5x, and it still doesn't make sense why it should work :) Correct answer is below from Nick Palmer
– qkx
Jun 24 '14 at 12:36
...
Pass Variables by Reference in Javascript
...e mentioned below, though in this case about Java. It occurred to me while reading the back-and-forth in the Reddit comments that a big part of the confusion stems from the unfortunate collision involving the word "reference". The terminology "pass by reference" and "pass by value" predates the conc...
What is the “Execute Around” idiom?
...a Expression:
executeWithFile("filename.txt", s -> System.out.println(s.read()));
// Or with Java 8 Method reference:
executeWithFile("filename.txt", ClassName::methodName);
The calling code doesn't need to worry about the open/clean-up side - it will be taken care of by executeWithFile.
This...
JPA or JDBC, how are they different?
...aded the eclipse with glassfish for the same. I saw some examples and also read the Oracle docs to know all about Java EE 5. Connecting to a database was very simple. I opened a dynamic web project, created a session EJB , I used EntityManager and with the get methods could access the stored data t...
Center/Set Zoom of Map to cover all visible Markers?
...unds.
Note: When the map is set to display: none, the fitBounds function reads the map's size as 0x0, and therefore does not do anything. To change the viewport while the map is hidden, set the map to visibility: hidden, thereby ensuring the map div has an actual size.
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