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What is a NullReferenceException, and how do I fix it?
...e common scenarios where the exception can be thrown:
Generic
ref1.ref2.ref3.member
If ref1 or ref2 or ref3 is null, then you'll get a NullReferenceException. If you want to solve the problem, then find out which one is null by rewriting the expression to its simpler equivalent:
var r1 = ref1;
var ...
How do Python functions handle the types of the parameters that you pass in?
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Is it possible to get CMake to build both a static and shared version of the same library?
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edited Oct 5 '19 at 13:07
squareskittles
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How do you specify the Java compiler version in a pom.xml file?
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<project>
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<build>
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<plugins>
<plugin>
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Websocket API to replace REST API?
...-socket-io-and-redis-to-make-a-real-time-chat-app/
http://fzysqr.com/2011/03/27/nodechat-js-continued-authentication-profiles-ponies-and-a-meaner-socket-io/
Tutorial on using Pusher with Backbone.js (using Rails):
http://blog.pusher.com/2011/6/21/backbone-js-now-realtime-with-pusher
Build appl...
Iterator Loop vs index loop [duplicate]
...combination of the for_each algorithm and the vector container (see option 3) below), but it's only one out of four distinct ways to iterate over a std::vector:
1) index-based iteration
for (std::size_t i = 0; i != v.size(); ++i) {
// access element as v[i]
// any code including continue,...
Reference - What does this error mean in PHP?
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Using emit vs calling a signal as if it's a regular function in Qt
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performSelector may cause a leak because its selector is unknown
...ts this information from the header of the object type you're working with.3
There are really only 4 things that ARC would consider for the return value:4
Ignore non-object types (void, int, etc)
Retain object value, then release when it is no longer used (standard assumption)
Release new object ...