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What are the reasons why Map.get(Object key) is not (fully) generic
... List.equals() says that two List objects are equal if they are both Lists and have the same contents, even if they are different implementations of List. So coming back to the example in this question, according to the specification of the method is possible to have a Map<ArrayList, Something>...
What is a practical use for a closure in JavaScript?
...osures without knowing it! I often put functions inside another like that, and then expose any I need public by returning an object literal like in your example.
– alex
Apr 28 '10 at 10:44
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How do I preview emails in Rails?
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@andres Pretty sure that's by design--you don't want users to preview your mail on production servers, it's meant only for local development.
– mpowered
Jan 24 '15 at 5:45
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MySQL OPTIMIZE all tables?
MySQL has an OPTIMIZE TABLE command which can be used to reclaim unused space in a MySQL install. Is there a way (built-in command or common stored procedure) to run this optimization for every table in the database and/or server install, or is this something you'd have to script up yourself?
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Breakpoint on property change
...d "Break on property change", where I can mark any property of any object, and it will stop JavaScript execution right before the change.
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Prevent Caching in ASP.NET MVC for specific actions using an attribute
...r class or action didn't have NoCache when it was rendered in your browser and you want to check it's working, remember that after compiling the changes you need to do a "hard refresh" (Ctrl+F5) in your browser. Until you do so, your browser will keep the old cached version, and won't refresh it wit...
horizontal line and right way to code it in html, css
I need to draw a horizontal line after some block, and I have three ways to do it:
10 Answers
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HTML img tag: title attribute vs. alt attribute?
I was browsing Amazon and I noticed that when searching " 1TB " if you hover the mouse cursor over the stars rating image, you only see the score if using IE. If you are using another browser then the score won't show.
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How to avoid “cannot load such file — utils/popen” from homebrew on OSX
...al
If it still doesn't work, use these steps inside a terminal session and everything will be fine:
cd /usr/local/Library/Homebrew
git reset --hard
git clean -df
brew update
This may be because homebrew is not updated.
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What does 'synchronized' mean?
I have some questions regarding the usage and significance of the synchronized keyword.
17 Answers
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