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_=> what does this underscore mean in Lambda expressions?
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It's more common in Haskell and other functional languages. I think that's where it comes from.
– Gabe Moothart
May 6 '10 at 4:34
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How to check if a model has a certain column/attribute?
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iPhone - Grand Central Dispatch main thread
...nished e.g.
- (void)doCalculation
{
//you can use any string instead "com.mycompany.myqueue"
dispatch_queue_t backgroundQueue = dispatch_queue_create("com.mycompany.myqueue", 0);
dispatch_async(backgroundQueue, ^{
int result = <some really long calculation that takes seconds...
Can I control the location of .NET user settings to avoid losing settings on application upgrade?
...software and they have different 'upgrade' codes, then to windows they are completely different pieces of software regardless of what the name is. However if the 'upgrade' code is the same, but the 'product' code is different then when you try to install the 2nd msi it will ask you if you want to u...
Java 8 method references: provide a Supplier capable of supplying a parameterized result
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What's the best way of structuring data on firebase?
...e is that you want to work hard on writes to make reads easy. Keep logical components that are read separately separate (e.g. for chat rooms, don't put the messages, meta info about the rooms, and lists of members all in the same place, if you want to be able to iterate the groups later).
The prima...
Does the GitHub traffic graph include your own views?
... 2 "unique visitors" for a day that I probably logged into it from my home computer and my work one. Given that nobody else has any reason to know about the repo, I suspect different computers count as different unique visitors, even when you're logged in (which I always am on both).
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Can I make fast forwarding be off by default in git?
... I would use git merge rather than git rebase and not want to have a commit show up. Is there any way to configure git to have fast forwarding off by default? The fact that there's an --ff option would seem to imply that there's a way, but I can't seem to find it in the documentation.
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