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How to calculate the number of occurrence of a given character in each row of a column of strings?
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143
The stringr package provides the str_count function which seems to do what you're interested in...
What's the simplest way to list conflicted files in Git?
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1264
git diff --name-only --diff-filter=U
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Ruby Bundle Symbol not found: _SSLv2_client_method (LoadError)
...oading ruby-2.1.2.tar.gz...
-> http://dqw8nmjcqpjn7.cloudfront.net/f22a6447811a81f3c808d1c2a5ce3b5f5f0955c68c9a749182feb425589e6635
Installing ruby-2.1.2...
Installed ruby-2.1.2 to /Users/ryan/.rbenv/versions/2.1.2
share...
Why use String.Format? [duplicate]
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408
I can see a number of reasons:
Readability
string s = string.Format("Hey, {0} it is the {1}s...
performSelector may cause a leak because its selector is unknown
...the header of the object type you're working with.3
There are really only 4 things that ARC would consider for the return value:4
Ignore non-object types (void, int, etc)
Retain object value, then release when it is no longer used (standard assumption)
Release new object values when no longer use...
Undo a merge by pull request?
...og, you should find something similar to this:
commit b76a5f1f5d3b323679e466a1a1d5f93c8828b269
Merge: 9271e6e a507888
Author: Tim Tom <tim@tom.com>
Date: Mon Apr 29 06:12:38 2013 -0700
Merge pull request #123 from john/foo_and_bar
Add foo and bar
commit a507888e9fcc9e08b658c0b25...
Returning IEnumerable vs. IQueryable
What is the difference between returning IQueryable<T> vs. IEnumerable<T> , when should one be preferred over the other?
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How do I check that a Java String is not all whitespaces?
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edited Mar 5 '16 at 17:44
answered Jul 14 '10 at 14:24
C...
Is it good practice to use the xor operator for boolean checks? [closed]
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– BlueRaja - Danny Pflughoeft
May 5 '10 at 20:54
4
My brain hurts. So can != yield incorrect results or not?...