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Multi-line commands in GHCi
...he following is sufficient:
Prelude> let addTwo x y = x + y
If you really want a definition with a type signature, or your definition spans over multiple lines, you can do this in ghci:
Prelude> :{
Prelude| let addTwo :: Int -> Int -> Int
Prelude| addTwo x y = x + y
Prelude| :}
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Alter MySQL table to add comments on columns
...he output of a SHOW CREATE TABLE statement. This protects you from accidentally losing an important part of your column definition by not realising that you need to include it in your MODIFY or CHANGE clause. For example, if you MODIFY an AUTO_INCREMENT column, you need to explicitly specify the AUT...
Logback to log different messages to two files
...instances which each log to a separate file; one for analytics and one for all purpose logging. Does anyone know if this is possible with Logback, or any other logger for that matter?
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ImportError: No module named site on Windows
I am trying to install Python for the first time. I downloaded the following installer from the Python website:
Python 2.7.1 Windows Installer (Windows binary -- does not include source) . I then ran the installer, selected 'All Users' and all was fine. I installed Python into the default location:...
Bootstrap Alert Auto Close
My need is to call alert when I click on Add to Wishlist button and should disappear the alert in 2 secs. This is how I tried, but the alert is disappearing instantly as soon as it is appearing. Not sure, where the bug is.. Can anyone help me out?
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Java: function for arrays like PHP's join()?
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This is clearly the best answer for all Android versions, as Java 8 is only coming out on Android in a bit. This solution uses the built in Android libs, rather than these silly "include a huge lib to perform one action" solutions.
– LukeS...
How to get UTC timestamp in Ruby?
... In my opninion an object is timestampy enough and you have still all the freedom you need. Reducing it to a scalar value is in most cases not really necessary.
– Joey
Jan 12 '12 at 6:27
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How to make ReSharper re-evaluate its assembly reference highlighting
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Except for reinstalling, the only way to successfully clear the caches is to delete the files manually from your AppData directory.
Delete the solution folder that's giving you grief in the following locations:
%LOCALAPPDATA%\JetBrain...
Difference between int[] array and int array[]
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They are semantically identical. The int array[] syntax was only added to help C programmers get used to java.
int[] array is much preferable, and less confusing.
sh...
Split a string at uppercase letters
... possible to split on a zero-width match in Python. But you can use re.findall instead:
>>> import re
>>> re.findall('[A-Z][^A-Z]*', 'TheLongAndWindingRoad')
['The', 'Long', 'And', 'Winding', 'Road']
>>> re.findall('[A-Z][^A-Z]*', 'ABC')
['A', 'B', 'C']
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