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What does “hashable” mean in Python?
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if it has hash value now what is hash value. can you give some example
– user1755071
Jan 26 '13 at 9:56
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What's wrong with cplusplus.com?
... Its because std::remove works with a pair of iterators only and does not know anything about the container which actually contains the items. In fact, it's not possible for std::remove to know the underlying container, because there is no way it can go from a pair of iterators to discover about the...
How to store a dataframe using Pandas
Right now I'm importing a fairly large CSV as a dataframe every time I run the script. Is there a good solution for keeping that dataframe constantly available in between runs so I don't have to spend all that time waiting for the script to run?
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What does “abstract over” mean?
... (implicit ff: Foldable[F], m: Monoid[B]) =
ff.foldMap(as, f)
Now we have something quite general. The method mapReduce will fold any F[A] given that we can prove that F is foldable and that A is a monoid or can be mapped into one. For example:
case class Sum(value: Int)
case class Pro...
How to install trusted CA certificate on Android device?
I have created my own CA certificate and now I want to install it on my Android Froyo device (HTC Desire Z), so that the device trusts my certificate.
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When to use MyISAM and InnoDB? [duplicate]
...resources. -- Mostly no longer true.
Full-text indexing. -- InnoDB has it now
Especially good for read-intensive (select) tables. -- Mostly no longer true.
Disk footprint is 2x-3x less than InnoDB's. -- As of Version 5.7, this is perhaps the only real advantage of MyISAM.
InnoDB:
The InnoDB st...
How to get the mouse position without events (without moving the mouse)?
...ge has fully loaded and don't move than. After onload the page immediatly knows the position of the mouse. No mouse movement is needed. So mouseenter is also fired, when the page has loaded and the mouse is inside the document area. That is, what the OP originally wanted. No one other provides this ...
Map a network drive to be used by a service
...ernalsSuite and execute the following command
psexec -i -s cmd.exe
you are now inside of a prompt that is nt authority\system and you can prove this by typing whoami. The -i is needed because drive mappings need to interact with the user
Step Three:
Create the persistent mapped drive as the SYSTEM ...
Cosmic Rays: what is the probability they will affect a program?
... the chip feature size for CPUs in 1995 was around 0.35 µm or 350nm. It's now 1/10th that size at 35nm.
– Joe Koberg
Apr 5 '10 at 21:02
21
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CSS customized scroll bar in div
...lbar-shadow-color:
}
Chrome & Safari (WebKit)
Similarly, WebKit now has its own version:
Styling scrollbars: https://www.webkit.org/blog/363/styling-scrollbars/
Demo of all WebKit scroll bar styling
From Custom scrollbars in WebKit, relevant CSS:
/* pseudo elements */
::-webkit-scrollb...