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What is the Comonad typeclass in Haskell?
What is the Comonad typeclass in Haskell? As in Comonad from Control.Comonad in the comonad package (explanations of any other packages that provide a Comonad typeclass are also welcome). I've vaguely heard about Comonad, but all I really know about it is that is provides extract :: w a -> a ,...
What is the Invariant Culture?
...which is useful because it will not change. The current culture can change from one user to another, or even from one run to another, so you can't rely on it staying the same.
Being able to use the same culture each time is very important in several flows, for example, serialization: you can have 1...
How to join absolute and relative urls?
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>>> from urlparse import urljoin
>>> url1 = "http://www.youtube.com/user/khanacademy"
>>> url2 = "/user/khanacademy"
>>> urljoin(url1, url2)
'http://www.youtube.com/user/khanacademy'
Simple.
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Detecting touch screen devices with Javascript
...ouch / tap functionality. So if you have some specific styles via CSS, and from jQuery you check those elements for the mobile device style properties you could hook into them to write you mobile specific code.
See here: http://www.forabeautifulweb.com/blog/about/hardboiled_css3_media_queries/
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Frontend tool to manage H2 database [closed]
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one discuss found here
quote from Thomas Mueller:
http://www.dbsolo.com/
http://www.minq.se/products/dbvis/
http://executequery.org/index.jsp
http://sqldeveloper.solyp.com/index.html
http://sql-workbench.net/index.html
http://www....
Convert string with commas to array
... @FarzadYZ Be careful with that (using eval). If the array contains values from client side input this will be insecure.
– Wilt
May 9 '16 at 12:01
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Having links relative to root?
... to Fruits List</a>
Edited in response to question, in comments, from OP:
So doing / will make it relative to www.example.com, is there a way to specify what the root is, e.g what if i want the root to be www.example.com/fruits in www.example.com/fruits/apples/apple.html?
Yes, prefac...
REST API Best practice: How to accept list of parameter values as input [closed]
...rly, when we want to "search" Products, our URI structure shouldn't change from "/Product/..." to "/Search/...".
Answering Your Initial Question
Regarding ["101404","7267261"] vs 101404,7267261: My suggestion here is to avoid the JSON syntax for simplicity's sake (i.e. don't require your users d...
Is it possible to have a multi-line comments in R? [duplicate]
I found this old thread (from over a year ago), which explains how come R doesn't support a multi-line comments (like /* comment */ of PHP, for example).
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Ruby: kind_of? vs. instance_of? vs. is_a?
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kind_of? and is_a? are synonymous.
instance_of? is different from the other two in that it only returns true if the object is an instance of that exact class, not a subclass.
Example:
"hello".is_a? Object and "hello".kind_of? Object return true because "hello" is a String and String...