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What are free monads?
...r monad, and the second one gives you a way to "get out" of it.
More generally, if X is a Y with some extra stuff P, then a "free X" is a a way of getting from a Y to an X without gaining anything extra.
Examples: a monoid (X) is a set (Y) with extra structure (P) that basically says it has an ope...
Reference list item by index within Django template?
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Mauricio Cortazar
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answered Jan 10 '11 at 20:29
Mike DeSimoneMike DeSimone
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Best way to parse RSS/Atom feeds with PHP [closed]
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Philip MortonPhilip Morton
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iTunes Connect: How to choose a good SKU?
.... But you shouldnt mind, because when its unique and sounds nice to you it all right ;)
– Dennis Stritzke
Jan 3 '12 at 10:51
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How to do a LIKE query in Arel and Rails?
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edited Feb 15 '16 at 17:11
answered Aug 10 '11 at 14:46
P...
Warning the user/local/mysql/data directory is not owned by the mysql user
... KronosKronos
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2
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how to use javascript Object.defineProperty
...rs = new Product("Sneakers",20);
sneakers.discount = 50; // 50, setter is called
sneakers.discount+= 20; // 70, setter is called
sneakers.discount+= 20; // 80, not 90!
alert(sneakers.discount); // getter is called
Note the last but one line: the responsibility for correct discount value was moved ...
Why can't I see the “Report Data” window when creating reports?
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After I accidentally closed this window, I took an hour to find how to bring it back up.
The right answer is indeed:
View-->Report Data (ctrl+alt+D)
The tricky part: the 'Report Data' entry does not always appear in the 'View' dropdown...
How to style input and submit button with CSS?
...t;
use
<button type='submit'>
Button was introduced specifically bearing CSS styling in mind. You can now add the gradient background image to it or style it using CSS3 gradients.
Read more on HTML5 forms structure here
http://www.w3.org/TR/2011/WD-html5-20110525/forms.html
Ch...
Why is x86 ugly? Why is it considered inferior when compared to others? [closed]
...s for it:
x86 is a relatively old ISA (its progenitors were 8086s, after all)
x86 has evolved significantly several times, but hardware is required to maintain backwards compatibility with old binaries. For example, modern x86 hardware still contains support for running 16 bit code natively. Addit...