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How to check for file existence [duplicate]
...iles
File.file?(filename)
and
# Will also return true for directories - watch out!
File.exist?(filename)
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iOS Simulator too big [duplicate]
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You can scale the simulator (both iOS and Apple Watch) from the Window > Scale menu, to 75%, 50%, 33%, or 25%:
This is enough to get even a Retina iPad simulator onto my 13" non-Retina screen.
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Should we pass a shared_ptr by reference or by value?
...tt, Andrei and Herb during Ask Us Anything session at C++ and Beyond 2011. Watch from 4:34 on shared_ptr performance and correctness.
Shortly, there is no reason to pass by value, unless the goal is to share ownership of an object (eg. between different data structures, or between different threads...
Set selected option of select box
...his is a great example of how you SHOULD do this, IF you have code that is watching for changes to the select.
– sean.boyer
Jul 31 '17 at 16:32
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commandButton/commandLink/ajax action/listener method not invoked or input value not set/updated
... each other. This is illegal in HTML. The browser behavior is unspecified. Watch out with include files! You can use UIForm components in parallel, but they won't process each other during submit. You should also watch out with "God Form" antipattern; make sure that you don't unintentionally process...
What do the terms “CPU bound” and “I/O bound” mean?
...raphs if the plotted function is complex enough.
https://www.youtube.com/watch?v=fE0P6H8eK4I "Real-Time Fluid Dynamics: CPU vs GPU" by Jesús Martín Berlanga
Solving partial differential equations such as the Navier Stokes equation of fluid dynamics:
highly parallel in nature, because each point...
Conceptually, how does replay work in a game?
...k on units and buildings, but not change their behaviors.
I remember once watching a replay of a match that had been played in the original game, but the replay was being viewed in Brood War. For those unfamiliar, Brood War contains all of the original units and buildings, as well as a variety of ...
MVVM: Tutorial from start to finish?
...l) design pattern. I have searched the Internet for tutorials. I have even watched the entirety of Jason Dolinger's awesome video. Although I have found many, I have not found one that takes me from start to finish. What I really want is a tutorial that doesn't assume any previous WPF knowledge.
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Laravel Eloquent groupBy() AND also return count of each group
...t('browser', ...) and got everything needed. You're good, you! youtube.com/watch?v=ravi4YtUTxo
– kJamesy
Aug 30 '13 at 13:35
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Eclipse: The declared package does not match the expected package
...h. I've created a video that shows how I do this: https://www.youtube.com/watch?v=IVIhgeahS1Ynto
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