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In C#, should I use string.Empty or String.Empty or “” to intitialize a string?
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Use whatever you and your team find the most readable.
Other answers have suggested that a new string is created every time you use "". This is not true - due to string interning, it will be created either once per assembly or once per AppDo...
When to use AtomicReference in Java?
...e = someFunctionOfOld(cachedValueToUpdate);
boolean success = cache.compareAndSet(cachedValue,cachedValueToUpdate);
Because of the atomic reference semantics, you can do this even if the cache object is shared amongst threads, without using synchronized. In general, you're better off using synchro...
Is !important bad for performance?
I hate them, it defies the cascading nature of CSS, and if you don't use them with care you end up in a loop of adding more !important .
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What is the difference between angular-route and angular-ui-router?
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ui-router is a 3rd-party module and is very powerful. It supports everything the normal ngRoute can do as well as many extra functions.
Here are some common reason ui-router is chosen over ngRoute:
ui-router allows for nested views and multiple named vi...
Simplest way to do a fire and forget method in C#?
...perationContract(IsOneWay = true)] attribute. But WCF seems kind of slow and heavy just to do create a nonblocking function. Ideally there would be something like static void nonblocking MethodFoo(){} , but I don't think that exists.
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What's the opposite of 'make install', i.e. how do you uninstall a library in Linux?
...ects the source / build tree; it does not touch the rest of the filesystem and so will not remove previously installed software.
If you're lucky, running make uninstall will work. It's up to the library's authors to provide that, however; some authors provide an uninstall target, others don't.
If...
Convert SVG image to PNG with PHP
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That's funny you asked this, I just did this recently for my work's site and I was thinking I should write a tutorial... Here is how to do it with PHP/Imagick, which uses ImageMagick:
$usmap = '/path/to/blank/us-map.svg';
$im = new Imagick();
$svg = file_get_contents($usmap);
/*loop to color eac...
In laymans terms, what does 'static' mean in Java? [duplicate]
... beginner to Java I'm still not sure what it means. Anybody fluent in Java and idiot?
6 Answers
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What does -> mean in Python function definitions?
...to attach a metadata string to various types of object. This is amazingly handy, so Python 3 extends the feature by allowing you to attach metadata to functions describing their parameters and return values.
There's no preconceived use case, but the PEP suggests several. One very handy one is to al...
Should methods in a Java interface be declared with or without a public access modifier?
...d, but discouraged as a matter of style, to redundantly specify the public and/or abstract modifier for a method declared in an interface.
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