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How do I use spaces in the Command Prompt?
...whole command had to be enclosed again by another pair of quotation marks. Now it works! Thanks!
– Arise
May 30 '13 at 6:36
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Take screenshots in the iOS simulator
...is an option
Menubar ▶ Window ▶ Enable "Show Device Bezel"
Now,
Press ⌘ + shift + 4 + Spacebar, all together in Mac Keyboard. (A window snap capture mode will become active)
Select Simulator window/frame, that you want to capture. It will save screenshot with device bezel (with ...
Why are elementwise additions much faster in separate loops than in a combined loop?
...'ll notice both loops are faster. Furthermore, the second (double) loop is now the slower one as you would normally expect.
As @Stephen Cannon points out in the comments, there is a very likely possibility that this alignment causes false aliasing in the load/store units or the cache. I Googled ar...
How is the fork/join framework better than a thread pool?
...problem or makes the solution more efficient from what we've had for years now.
11 Answers
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Assignment in an if statement
...tion, but the alternatives usually involve code duplication, and when you know this pattern it's easy to get right.
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How to get all count of mongoose model?
How can I know the count of a model that data has been saved? there is a method of Model.count() , but it doesn't seem to work.
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There is already an open DataReader associated with this Command which must be closed first
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I have had this error so many times now... and every time I forget! The answer to the question is always to use ToList().
– Cheesus Toast
Jul 21 '15 at 19:24
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Find index of last occurrence of a sub-string using T-SQL
...e last occurrence of a string using SQL? I am using SQL Server 2000 right now. I basically need the functionality that the .NET System.String.LastIndexOf method provides. A little googling revealed this - Function To Retrieve Last Index - but that does not work if you pass in a "text" column ...
Why are Where and Select outperforming just Select?
...);
int result2 = myCollection.Sum(mc => mc.IsValid ? mc.Value : 0);
Now here's the kicker:
LINQ uses deferred execution. Thus, while it may appear that result1 iterates over the collection twice, it actually only iterates over it once. The Where() condition is actually applied during the S...
Explain the concept of a stack frame in a nutshell
...he "frame," although this is likely architecture-dependent. The processor knows how many bytes are in each frame and moves the stack pointer accordingly as frames are pushed and popped off the stack.
EDIT:
There is a big difference between higher-level call stacks and the processor's call stack.
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