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Can't ignore UserInterfaceState.xcuserstate
...erfaceState.xcuserstate to .gitignore , but Git it won't ignore it. Any ideas why this is so?
12 Answers
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Is it good practice to make the constructor throw an exception? [duplicate]
...mplement argument checking that is specified in your javadoc is not a good idea ... because it means your method will only strictly implement the specification when assertion checking is enabled.
The second problem with assert is that if an assertion fails, then AssertionError will be thrown, and r...
Update built-in vim on Mac OS X
...t to install over your existing Vim, for better or worse :-) This is a bad idea and it is not the "clean" way to do it. Why? Well, OS X expects that nothing will ever change in /usr/bin unbeknownst to it, so any time you overwrite stuff in there you risk breaking some intricate interdependency. And,...
Test if a command outputs an empty string
...er of maximally 1 character using head -c1(thanks to netj for posting this idea in the comments below)
compare that number with zero
So for example, instead of:
if [[ $(ls -A) ]]
I would use:
if [[ $(ls -A | wc -c) -ne 0 ]]
# or:
if [[ $(ls -A | head -c1 | wc -c) -ne 0 ]]
Instead of:
if [ ...
Learn C first before learning Objective-C [closed]
... you'll receive a very powerful team.
If you only learn Obj-C and have no idea of C or only know the very basics of it and never tried how elegantly it can solve some common problems, you actually learned only half of Obj-C. C is a fundamental part of Obj-C. The ability to use C at any time and eve...
Java compile speed vs Scala compile speed
...st has settled on 2.8. This page documents some of the ongoing efforts and ideas to improve the performance of the Scala compiler.
Martin Odersky provides much more detail in his answer.
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Finding JavaScript memory leaks with Chrome
... the $0 function in the console, that was new to me - of course, I have no idea what that's doing or how you knew to use it ($1 seems useless while $2 seems to do the same thing). Secondly, how did you know to highlight the row #button in function cache() and not any of the other dozens of rows? Fin...
Open a project in a new window in IntelliJ after “accidentally” clicking remember decision
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In IDEA 14 and IDEA 15, this can be found in Settings | Appearance & Behavior | System Settings -> Project Opening.
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java.lang.IllegalStateException: Cannot (forward | sendRedirect | create session) after response has
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@BalusC Do you have an idea on this related problem? stackoverflow.com/questions/18658021/…
– confile
Sep 14 '13 at 21:42
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Builder Pattern in Effective Java
... have recently started to read Effective Java by Joshua Bloch. I found the idea of the Builder pattern [Item 2 in the book] really interesting. I tried to implement it in my project but there were compilation errors. Following is in essence what I was trying to do:
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