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Curious null-coalescing operator custom implicit conversion behaviour
...ator.
I have not yet identified where precisely things go wrong, but at some point during the "nullable lowering" phase of compilation -- after initial analysis but before code generation -- we reduce the expression
result = Foo() ?? y;
from the example above to the moral equivalent of:
A? temp...
-didSelectRowAtIndexPath: not being called
...with a table view inside a tab view. In my UITableViewController , I implemented -tableView:didSelectRowAtIndexPath: , but when I select a row at runtime, the method isn't being called. The table view is being populated though, so I know that other tableView methods in my controller are being cal...
ERROR 2003 (HY000): Can't connect to MySQL server on '127.0.0.1' (111)
...ere is no replication enabled):
run the command vim /etc/mysql/my.cnf
comment bind-address = 127.0.0.1 using the # symbol
restart your mysql server once.
Update
In Step 1, if you cannot find bind-address in the my.cnf file, look for it in /etc/mysql/mysql.conf.d/mysqld.cnf file.
Update in case...
How to clean project cache in Intellij idea like Eclipse's clean?
Sometimes the IDE makes some error because of the cache. In Eclipse, we can use clean to solve the problem. But how can I do this in IntelliJ?
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Unrecognized SSL message, plaintext connection? Exception
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I have the same error, and I solved when I started using http instead of https. But when I place the link in browser with https it works! And I need to perform a safe query. Any idea on how can I solve the problem?
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Notepad++ add to every line
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It tells me cant find "^" when i click replace
– johnkol
Jun 12 '12 at 20:46
59
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How to reset Android Studio
I want to reset Android Studio 0.2.13 to the default state. That means reset all settings, remove all projects, all gradle files so that it would act like a fresh installation. What steps do I have to follow to achieve this?
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Java 8 Iterable.forEach() vs foreach loop
...om throwing checked exceptions, but common functional interfaces like Consumer don't declare any. Therefore, any code that throws checked exceptions must wrap them in try-catch or Throwables.propagate(). But even if you do that, it's not always clear what happens to the thrown exception. It could ge...
Linux how to copy but not overwrite? [closed]
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@galenandrew Confirmed. Thank you. My project wasn't building in Xcode after adding a run script to my target.
– Ruiz
Apr 17 '17 at 20:30
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