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HTML 5: Is it , , or ?
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Simply <br> is sufficient.
The other forms are there for compatibility with XHTML; to make it possible to write the same code as XHTML, and have it also work as HTML. Some systems that generate HTML may be based on XML generators, and thus do not have the ability to output just a bare <br...
How to make asynchronous HTTP requests in PHP
...esponse, I just want to do something like file_get_contents() , but not wait for the request to finish before executing the rest of my code. This would be super useful for setting off "events" of a sort in my application, or triggering long processes.
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Final arguments in interface methods - what's the point?
In Java, it is perfectly legal to define final arguments in interface methods and do not obey that in the implementing class, e.g.:
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When to use Vanilla JavaScript vs. jQuery?
I have noticed while monitoring/attempting to answer common jQuery questions, that there are certain practices using javascript, instead of jQuery, that actually enable you to write less and do ... well the same amount. And may also yield performance benefits.
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What's the difference between Perl's backticks, system, and exec?
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exec
executes a command and never returns.
It's like a return statement in a function.
If the command is not found exec returns false.
It never returns true, because if the command is found it never returns at all.
There is also no point in returning STDOUT, STDE...
Hash collision in git
What would actually happen if I had a hash collision while using git?
9 Answers
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What exactly is Arel in Rails 3.0?
I understand that it is a replacement for ActiveRecord and that it uses objects instead of queries.
4 Answers
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How can I make an svg scale with its parent container?
...g element's contents scale when size is non-native. Of course I could have it as a separate file and scale it like that.
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How do C++ class members get initialized if I don't do it explicitly?
Suppose I have a class with private memebers ptr , name , pname , rname , crname and age . What happens if I don't initialize them myself? Here is an example:
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Image width/height as an attribute or in CSS? [duplicate]
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It should be defined inline. If you are using the img tag, that image should have semantic value to the content, which is why the alt attribute is required for validation.
If the image is to be part of the layout or templat...