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“use database_name” command in PostgreSQL
...you must get a new connection.
Using \c in psql closes the old connection and acquires a new one, using the specified database and/or credentials. You get a whole new back-end process and everything.
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Clearing localStorage in javascript?
.... I know this because I have set an "instance" property on my model to a random number on initialize, and, for a given id, the instance property is always the same.
– sydneyos
Oct 4 '14 at 0:46
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Remove the last character from a string [duplicate]
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First, I try without a space, rtrim($arraynama, ","); and get an error result.
Then I add a space and get a good result:
$newarraynama = rtrim($arraynama, ", ");
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What is the easiest way to duplicate an activerecord record?
... Does this still work in Rails 3.1.0.beta? When I do q = p.clone, and then p == q, I get true back. On the other hand, if I use q = p.dup, I get false back when comparing them.
– Juno Woods
Feb 8 '11 at 2:10
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How to disable and re-enable console logging in Python?
I am using Python's logging module and I want to disable the console logging for some time but it doesn't work.
17 Answer...
Django Model - Case-insensitive Query / Filtering
How can I query/filter in Django and ignore the cases of my query-string?
1 Answer
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Attach a file from MemoryStream to a MailMessage in C#
... a file to email. Currently I am saving file using FileStream into disk, and then I use
8 Answers
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Problems with pip install numpy - RuntimeError: Broken toolchain: cannot link a simple C program
I'm trying to install numpy (and scipy and matplotlib) into a virturalenv.
11 Answers
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Javascript shorthand ternary operator
...urn true or false, it returns the first 'truthy' value. Say you have val0 and val1 as undefined, and val2 is 2, val3 is 3. val0 || val1 || val2 || val3 will return 2, as it is the first 'truthy' value.
– Jake T.
May 2 '18 at 15:54
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How to hide the title bar for an Activity in XML with existing custom theme
... a style to all my activities, therefore I can't simply set the theme to @android:style/Theme.NoTitleBar .
37 Answers
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