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What is Func, how and when is it used
...ied to any particular functionality.
For example, consider the Enumerable.Select extension method.
The pattern is: for every item in a sequence, select some value from that item (e.g., a property) and create a new sequence consisting of these values.
The placeholder is: some selector function tha...
How to assign string to bytes array
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Safe and simple:
[]byte("Here is a string....")
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How to remove selected commit log entries from a Git repository while keeping their changes?
I would like to remove selected commit log entries from a linear commit tree, so that the entries do not show in the commit log.
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Which machine learning classifier to choose, in general? [closed]
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Model selection using cross validation may be what you need.
Cross validation
What you do is simply to split your dataset into k non-overlapping subsets (folds), train a model using k-1 folds and predict its performance using the...
iOS: How to store username/password within an app?
... 3 right-click on frameworks folder and add existing framework. In Xcode 4 select your project, then select target, go to Build Phases tab and click + under Link Binary With Files) and KeychainItemWrapper .h & .m files into your project, #import the .h file wherever you need to use keychain and ...
pod install -bash: pod: command not found
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OK, found the problem. I upgraded Ruby some time ago and blasted away a whole load of gems. Solution:
sudo gem install cocoapods
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How do I change db schema to dbo
...which will generate a set of ALTER sCHEMA statements for all your talbes:
SELECT 'ALTER SCHEMA dbo TRANSFER ' + TABLE_SCHEMA + '.' + TABLE_NAME
FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = 'jonathan'
You then have to copy and run the statements in query analyzer.
Here's an older script t...
How to do SELECT COUNT(*) GROUP BY and ORDER BY in Django?
...lvaro has answered the Django's direct equivalent for GROUP BY statement:
SELECT actor, COUNT(*) AS total
FROM Transaction
GROUP BY actor
is through the use of values() and annotate() methods as follows:
Transaction.objects.values('actor').annotate(total=Count('actor')).order_by()
However ...
How do I 'svn add' all unversioned files to SVN?
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also you could probably dig up sed and grep on windows if you really wanted.
– Sam Saffron
Jul 2 '09 at 5:13
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What does “./” (dot slash) refer to in terms of an HTML file path location?
... How does this answer the question? Apparently, Simon Suh understands that ./ refers to the same location where the referring file is. The main part of the question then is: "Why to use it and is it necessary at all?". The only reason to prefer the syntax of "./file" instead of "file" I wa...