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INNER JOIN vs LEFT JOIN performance in SQL Server
... LEFT JOIN because the performance of LEFT JOIN is better, despite what I know. After I changed it, the speed of query got significantly improved.
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Why are mutable structs “evil”?
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Developing in C#, you usually need mutability ever now and then - especially with your Business Model, where you want streaming etc. to work smoothly with existing solutions. I wrote an article on how to work with mutable AND immutable data, solving most issues around mutabil...
Why are const parameters not allowed in C#?
...ld call some mutating method on a non const alias of the const object, and now the so-called const object has changed.
C-style const provides no guarantee that the object will not change, and is therefore broken. Now, C already has a weak type system in which you can do a reinterpret cast of a doub...
How can I use Python to get the system hostname?
...ng.
I ran into a case where the above didn't work. This is what I'm using now:
import socket
if socket.gethostname().find('.')>=0:
name=socket.gethostname()
else:
name=socket.gethostbyaddr(socket.gethostname())[0]
It first calls gethostname to see if it returns something that looks li...
What are some compelling use cases for dependent method types?
...pendent method types, which used to be an experimental feature before, has now been enabled by default in the trunk , and apparently this seems to have created some excitement in the Scala community.
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Everyauth vs Passport.js?
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Ironically, but passport has much more issues now: github.com/jaredhanson/passport/issues (273 vs. 148 for everyauth).
– Anton Bessonov
Jul 29 '18 at 19:43
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Clearing NSUserDefaults
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Good to know, thank you! But I was talking about the string appDomain. Is that auto released also?
– IcyBlueRose
Oct 17 '11 at 14:28
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How to check if array element exists or not in javascript?
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This in my opinion is the best answer, by now IE 7 is not mainteined any more so it's not a problem. Although I will suggest to use the triple equals if(myArray.indexOf(searchTerm) === -1)
– Mauro Gava
Sep 1 '16 at 2:49
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What is the difference between concurrency, parallelism and asynchronous methods?
...are NOT the same thing.
Differences between concurrency vs. parallelism
Now let’s list down remarkable differences between concurrency and parallelism.
Concurrency is when two tasks can start, run, and complete in overlapping time periods. Parallelism is when tasks literally run at the same ti...
JQuery to check for duplicate ids in a DOM
...orget I have this running in production and really ought to optimize it by now - or add a debug setting to turn it on/off!
– Simon_Weaver
Mar 18 '11 at 19:15
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