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Why are Where and Select outperforming just Select?
... Where does not create anything, just return one element at the time from source sequence if only it fill the predicate.
– MarcinJuraszek
Aug 20 '13 at 16:30
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how to schedule a job for sql query to run daily?
...of the New Job window and enter the schedule information (e.g. daily and a time).
Click 'OK' - and that should be it.
(There are of course other options you can add - but I would say that is the bare minimum you need to get a job set up and scheduled)
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Removing empty lines in Notepad++
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If this is a one-time operation, you can extract the selected lines to the new notepad++ tab and perform that operation there. Copy-paste procedure for 5seconds. Any other workaround that cannot be accomplished in that time is a waste in my o...
Best way to serialize an NSData into a hexadeximal string
...for large amounts of data. I profiled this with a 2MB file on my iPhone 5. Time comparison was 0.05 vs 12 seconds. Memory footprint is negligible with this method while the other method grew the heap to 70MBs!
- (NSString *) hexString
{
NSUInteger bytesCount = self.length;
if (bytesCount) {...
Why is “except: pass” a bad programming practice?
...s about how the use of except: pass is discouraged. Why is this bad? Sometimes I just don't care what the errors are and I want to just continue with the code.
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Meaning of acronym SSO in the context of std::string
...ated using new). However, the size of automatic arrays is fixed at compile time, but the size of arrays from the free store is not. Moreover, the stack size is limited (typically a few MiB), whereas the free store is only limited by your system's memory.
SSO is the Short / Small String Optimization...
What do 'lazy' and 'greedy' mean in the context of regular expressions?
...ill prevent this. By adding the ? after the +, we tell it to repeat as few times as possible, so the first > it comes across, is where we want to stop the matching.
I'd encourage you to download RegExr, a great tool that will help you explore Regular Expressions - I use it all the time.
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Shell script to send email [duplicate]
I am on linux machine and I monitor a process usage. Most of the time I will be away from my system and I have access to internet on my device. So I planned to write a shell-script that can mail me the output of the process.
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What is the difference between string primitives and String objects in JavaScript?
... smart engine will not convert a string primitive-y to String object every time you need to call a method. This is also informatively mentioned in the Annotated ES5 spec. with regard to resolving properties (and "methods"¹) of primitive values:
NOTE The object that may be created in step 1 is n...
How to find an available port?
...e port, close it again, and then open one again on the free port (by which time there is a small chance something else is now listening on that port.)
– Graham Edgecombe
Sep 4 '12 at 12:49
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