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Check if table exists and if it doesn't exist, create it in SQL Server 2008
...t for contrast, I like using the object_id function as shown below. It's a bit easier to read, and you don't have to worry about sys.objects vs. sysobjects vs. sys.all_objects
vs. sys.tables. Basic form:
IF object_id('MyTable') is not null
PRINT 'Present!'
ELSE
PRINT 'Not accounted for'
O...
How can I convert an RGB image into grayscale in Python?
...
does not work for 32 bit PNG, values will be clamped to 255
– Andrew Matuk
May 31 at 21:58
add a comment
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How to find first element of array matching a boolean condition in JavaScript?
...above @Bergi, i think with ES6 destructuring we can improve above a little bit: var [result] = someArray.filter(isNotNullNorUndefined);
– Nakul Manchanda
Apr 30 '18 at 1:23
...
Error java.lang.OutOfMemoryError: GC overhead limit exceeded
...out.printf("Done.%n");
}
}
Using Java 1.6.0_24-b07 on a Windows 7 32 bit.
java -Xloggc:gc.log GarbageCollector
Then look at gc.log
Triggered 444 times using BAD method
Triggered 666 times using WORSE method
Triggered 354 times using BETTER method
Now granted, this is not the best test ...
Convert a timedelta to days, hours and minutes
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This is a bit more compact, you get the hours, minutes and seconds in two lines.
days = td.days
hours, remainder = divmod(td.seconds, 3600)
minutes, seconds = divmod(remainder, 60)
# If you want to take into account fractions of a sec...
How is pattern matching in Scala implemented at the bytecode level?
...ng, e.g when there's some overlap between cases it might coalesce things a bit. Advanced patterns and optimization are an active area of work in the compiler, so don't be surprised if the byte code improves substantially over these basic rules in current and future versions of Scala.
In addition...
Referring to a file relative to executing script
...script is only going to be run from certain shells, and only with a little bit of flexibility required, you can probably relax some of this paranoia. It is still good to look at your options. There are common patterns that people use that are particularly problematic.
In particular, the FAQ recomme...
Add line break within tooltips
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if entity code 
 doesn't work, try 
 i am using linux and chrome not sure about other browsers
– Krishna
Nov 1 '16 at 9:20
4
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If string is empty then return some default value
...ake extra work even if address is not empty. Maybe you could update that a bit (sorry about confusing one-liner, trying to keep it short):
class String
def or what = ""
self.strip.empty? ? block_given? ? yield : what : self
end
end
@user.address.or "We don't know user's address"
@user.addr...
Toggle Checkboxes on/off
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I know this is old but the question was a bit ambiguous in that toggle may mean each checkbox should toggle its state, whatever that is. If you have 3 checked and 2 unchecked, then toggling would make the first 3 unchecked and the last 2 checked.
For that, none of ...