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Delete duplicate rows from small table
...table in a PostgreSQL 8.3.8 database, which has no keys/constraints on it, and has multiple rows with exactly the same values.
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How much does it cost to develop an iPhone application? [closed]
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I'm one of the developers for Twitterrific and to be honest, I can't tell you how many hours have gone into the product. I can tell you everyone who upvoted the estimate of 160 hours for development and 40 hours for design is fricken' high. (I'd use another phrase, bu...
Run a single migration file
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Sometimes you need a './' in front of the require path, and it definitely doesn't update the schema_migrations.
– Beardo
Aug 26 '11 at 15:26
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How do I ignore a directory with SVN?
I just started using SVN, and I have a cache directory that I don't need under source control. How can I ignore the whole directory/folder with SVN?
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How to evaluate http response codes from bash/shell script?
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I haven't tested this on a 500 code, but it works on others like 200, 302 and 404.
response=$(curl --write-out '%{http_code}' --silent --output /dev/null servername)
Note, format provided for --write-out should be quoted.
As suggested by @ibai, add --head to make a HEAD only request. This will sav...
How to diff a commit with its parent?
Aside from writing an alias or script, is there a shorter command for getting the diff for a particular commit?
8 Answers
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Can't subtract offset-naive and offset-aware datetimes
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naive datetime objects are inherently ambiguous and therefore they should be avoided. It is easy to add tzinfo instead
– jfs
Sep 4 '14 at 9:39
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What can I use instead of the arrow operator, `->`?
... them inconsistently. Becomes really annoying when you work with templates and don't know the precise type.
– Konrad Rudolph
Oct 21 '08 at 10:15
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Replace all non Alpha Numeric characters, New Lines, and multiple White Space with one Space
...would be [\W_]
text.replace(/[\W_]+/g," ");
\W is the negation of shorthand \w for [A-Za-z0-9_] word characters (including the underscore)
Example at regex101.com
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How to get all groups that a user is a member of?
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This just saved me from using the most convoluted and long winded method of finding this. Knew that powershell would have something like this but could not find it anywhere. +1
– Tim Alexander
Sep 11 '13 at 10:00
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