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When to use references vs. pointers
...de when it is more-or-less appropriate to use references or pointers in an API?
17 Answers
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What is “loose coupling?” Please provide examples
...asses that call them. That allows ABC and XYZ to be completely independent APIs. Or in other words, they are "decoupled" or "loosely coupled" from the parent classes.
But what if we need communication between the two? Well, then we can use further abstractions like an Event Model to ensure that the...
How do I make JavaScript beep?
...
I wrote a function to beep with the new Audio API.
var beep = (function () {
var ctxClass = window.audioContext ||window.AudioContext || window.AudioContext || window.webkitAudioContext
var ctx = new ctxClass();
return function (duration, type, finishedCallb...
Java Enum definition
...ll be asking yourself what the point of this is :) Well, it means that the API for Enum can refer to itself - for instance, being able to say that Enum<E> implements Comparable<E>. The base class is able to do the comparisons (in the case of enums) but it can make sure that it only compa...
Persistence unit as RESOURCE_LOCAL or JTA?
...er to a unit of type RESOURCE_LOCAL
You must use the
EntityTransaction API to begin/commit around
every call to your EntityManger Calling
entityManagerFactory.createEntityManager() twice results in
two separate EntityManager instances and therefor
two separate PersistenceContexts/Caches....
C++ Exceptions questions on rethrow of original exception
... MWE on GitHub, where a backtrace would look something like this:
Library API: Exception caught in function 'api_function'
Backtrace:
~/Git/mwe-cpp-exception/src/detail/Library.cpp:17 : library_function failed
~/Git/mwe-cpp-exception/src/detail/Library.cpp:13 : could not open file "nonexistent.txt"...
Load and execute external js file in node.js with access to local variables?
... + circle.area(4));
This code was extracted from node.js documentation API:
http://nodejs.org/docs/v0.3.2/api/modules.html
Also, if you want to use something like Rails or Sinatra, I recommend Express (I couldn't post the URL, shame on Stack Overflow!)
...
How to set cookie in node js using express framework?
...t a cookie:
res.cookie('cookie', 'monster')
https://expressjs.com/en/4x/api.html#res.cookie
Read a cookie:
(using cookie-parser middleware)
req.cookies['cookie']
https://expressjs.com/en/4x/api.html#req.cookies
share...
Core pool size vs maximum pool size in ThreadPoolExecutor
...For a fuller explanation, get it from the horses mouth: ThreadPoolExecutor API documentation.
There is a really good forum post which talks you through the way that the ThreadPoolExecutor works with code examples: http://forums.sun.com/thread.jspa?threadID=5401400&tstart=0
More info: http://fo...
Generate pdf from HTML in div using Javascript
...lt;/title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript">
$("#btnPrint").live("click", function () {
var divContents = $("#dvContainer").html();
...