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Ruby's ||= (or equals) in JavaScript?
I love Ruby's ||= mechanism. If a variable doesn't exist or is nil , then create it and set it equal to something:
6 Ans...
PHP Fatal error: Cannot redeclare class
...ers the question perfectly and it is timeless, AaronLS makes an assumption then attempts to solve the problem which can now be solved many better ways.
– TarranJones
May 11 '16 at 11:32
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How to select records from last 24 hours using SQL?
...d(dd,-1,getdate())
If you are on the 2008 increased accuracy date types, then use the new sysdatetime() function instead, equally if using UTC times internally swap to the UTC calls.
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impro...
How to go back in Eclipse?
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Epic, I sadly used to 'Undo' then 'Redo' before learning this.
– Daniel Sokolowski
Jul 15 '15 at 5:09
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How to implement the Java comparable interface?
...imal> i.e. public class Animal implements Comparable<Animal>. And then you have to implement the compareTo(Animal other) method that way you like it.
@Override
public int compareTo(Animal other) {
return Integer.compare(this.year_discovered, other.year_discovered);
}
Using this imple...
How can I select multiple columns from a subquery (in SQL Server) that should have one record (selec
...her than the max of Foo and the max of Foo2 - which is NOT the same thing) then the following will usually work better than a subquery:
SELECT
A.SalesOrderID,
A.OrderDate,
B1.Foo,
B1.Foo2
FROM
A
LEFT OUTER JOIN B AS B1 ON
B1.SalesOrderID = A.SalesOrderID
LEFT OUTER JOI...
MySQL: Can't create table (errno: 150)
...can get the actual error message by running SHOW ENGINE INNODB STATUS; and then looking for LATEST FOREIGN KEY ERROR in the output.
Source: answer from another user in a similar question
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im...
do you have kcachegrind like profiling tools for mac [closed]
...ame $0)/qcachegrind.bin exit 0’ > qcachegrind $ chmod +x qcachegrind Then start qcachegrind as usual.
– troseman
Oct 7 '16 at 3:59
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s...
Truncate (not round) decimal places in SQL Server
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If not, use
select ceiling(@value),floor(@value)
If you do it with 0 then do a round:
select round(@value,2)
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How do I find the PublicKeyToken for a particular dll?
... Framework tools sn.exe. So open the Visual Studio 2008 Command Prompt and then point to the dll’s folder you want to get the public key,
Use the following command,
sn –T myDLL.dll
This will give you the public key token. Remember one thing this only works if the assembly has to be strongly s...