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How to change the style of the title attribute inside an anchor tag?
...o.png) #f0f0f0 no-repeat 100% 5%;
left: 0px;
margin: 10px;
width: 250px;
position: absolute;
top: 10px;
text-decoration: none
}
<a href="#" class="tip">Link<span>This is the CSS tooltip showing up when you mouse over the link</span></a>
...
What is the purpose of a stack? Why do we need it?
...rs like the C# compiler generate CIL, and then at runtime another compiler called the JIT (Just In Time) compiler turns the IL into actual machine code that can execute.
So first let's answer the question "why have MSIL at all?" Why not just have the C# compiler write out machine code?
Because i...
How to call shell commands from Ruby
How do I call shell commands from inside of a Ruby program? How do I then get output from these commands back into Ruby?
20...
What is the use of static constructors?
... required configuration data into readonly fields, etc.
It is run automatically by the runtime the first time it is needed (the exact rules there are complicated (see "beforefieldinit"), and changed subtly between CLR2 and CLR4). Unless you abuse reflection, it is guaranteed to run at most once (ev...
JavaScript % (modulo) gives a negative result for negative numbers
...
I don't know that I would call it a "bug". The modulo operation is not very well defined over negative numbers, and different computing environments handle it differently. Wikipedia's article on the modulo operation covers it pretty well.
...
How does RegexOptions.Compiled work?
... linked list. If you happen to increase it to 5000, and use 5000 different calls on the static helpers, every regular expression construction will crawl the 5000 entries to see if it has previously been cached. There is a lock around the check, so the check can decrease parallelism and introduce thr...
Understanding __get__ and __set__ and Python descriptors
...ith the Temperature class). For example:
temp=Temperature()
temp.celsius #calls celsius.__get__
Accessing the property you assigned the descriptor to (celsius in the above example) calls the appropriate descriptor method.
instance in __get__ is the instance of the class (so above, __get__ would ...
Update ViewPager dynamically?
... solution is to override getItemPosition(). When notifyDataSetChanged() is called, ViewPager calls getItemPosition() on all the items in its adapter to see whether they need to be moved to a different position or removed.
By default, getItemPosition() returns POSITION_UNCHANGED, which means, "This...
HTML5: Slider with two inputs possible?
Is it possible to make a HTML5 slider with two input values, for example to select a price range? If so, how can it be done?
...
When do I use a dot, arrow, or double colon to refer to members of a class in C++?
... type". So the above refers to all three of them.
References are, semantically, aliases to objects, so I should have added "or reference to a pointer" to the #3 as well. However, I thought this would be more confusing than helpful, since references to pointers (T*&) are rarely ever used.
The d...