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Remove trailing newline from the elements of a string list
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If you're using Python 2, note however, that str.strip only works if you're sure that the list does not contain unicode strings. If it can contain both 8-bit and unicode strings, use lambda s: s.strip() as mentioned above, or...
How to install a previous exact version of a NPM package?
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If you have to install an older version of a package, just specify it
npm install <package>@<version>
For example: npm install express@3.0.0
You can also add the --save flag to that command to add it to your p...
Is not an enclosing class Java
...lass.
The simplest solution is to make ZShape and any nested class static if you can.
I would also make any fields final or static final that you can as well.
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How can foreign key constraints be temporarily disabled using T-SQL?
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If you want to disable all constraints in the database just run this code:
-- disable all constraints
EXEC sp_MSforeachtable "ALTER TABLE ? NOCHECK CONSTRAINT all"
To switch them back on, run: (the print is optional of cou...
Python argparse command line flags without arguments
...have it, the argument w is expecting a value after -w on the command line. If you are just looking to flip a switch by setting a variable True or False, have a look at http://docs.python.org/dev/library/argparse.html#action (specifically store_true and store_false)
import argparse
parser = argpars...
Heroku “psql: FATAL: remaining connection slots are reserved for non-replication superuser connectio
... and leaving connections open and then opening new ones when it restarts. If this kind of thing happens a lot then you'll run out of connections. Or the app is just configured improperly and opens too many connections.
– Scott Marlowe
Aug 7 '12 at 15:04
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Compare two Byte Arrays? (Java)
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In your example, you have:
if (new BigInteger("1111000011110001", 2).toByteArray() == array)
When dealing with objects, == in java compares reference values. You're checking to see if the reference to the array returned by toByteArray() is the same a...
How to clear all s’ contents inside a parent ?
...n what was asked for in the original question -- you should use a more specific selector.
– Drew Noakes
Aug 10 '11 at 10:48
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What are the best practices for using Assembly Attributes?
...ributes should be in solution wide file and which are project/assembly specific?
8 Answers
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Spring Boot JPA - configuring auto reconnect
...validationQuery=SELECT 1
As djxak noted in the comment, 1.4+ defines specific namespaces for the four connections pools Spring Boot supports: tomcat, hikari, dbcp, dbcp2 (dbcp is deprecated as of 1.5). You need to check which connection pool you are using and check if that feature is supported. Th...