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JavaScript style for optional callbacks
...k and run it. Is checking if the callback is defined/function a good style or is there a better way?
10 Answers
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When to use ref and when it is not necessary in C#
I have a object that is my in memory state of the program and also have some other worker functions that I pass the object to to modify the state. I have been passing it by ref to the worker functions. However I came across the following function.
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How is Docker different from a virtual machine?
...d a full VM. How does it manage to provide a full filesystem, isolated networking environment, etc. without being as heavy?
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C++ template constructor
I wish to have a non-template class with a template constructor with no arguments.
8 Answers
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What's the best way to do “application settings” in Android? [closed]
I'd like to store some application settings (like the URL of an API, and some settings for testing) for an Android application.
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GET URL parameter in PHP
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$_GET is not a function or language construct—it's just a variable (an array). Try:
<?php
echo $_GET['link'];
In particular, it's a superglobal: a built-in variable that's populated by PHP and is available in all scopes (you can use it from ...
How to dynamically insert a tag via jQuery after page load?
I'm having problems getting this to work. I first tried setting my script tags as strings and then using jquery replaceWith() to add them to the document after page load:
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C++ - passing references to std::shared_ptr or boost::shared_ptr
If I have a function that needs to work with a shared_ptr , wouldn't it be more efficient to pass it a reference to it (so to avoid copying the shared_ptr object)?
What are the possible bad side effects?
I envision two possible cases:
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What is the real overhead of try/catch in C#?
So, I know that try/catch does add some overhead and therefore isn't a good way of controlling process flow, but where does this overhead come from and what is it's actual impact?
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Can you “ignore” a file in Perforce?
I sometimes use the feature 'Reconcile Offline Work...' found in Perforce's P4V IDE to sync up any files that I have been working on while disconnected from the P4 depot. It launches another window that performs a 'Folder Diff'.
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