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微博为什么限制140字(附短信70字限制考) - 闲聊区 - 清泛IT社区，为创新赋能！
... It also just so happens that 140 characters is the perfect length for sending status updates via text message. The standard text message length in most places is 160 characters per message. We reserve 20 characters for people’s names, and the other 140 are all yours! (via Twitter FAQ)也就是说...
View a file in a different Git branch without changing branches
Is it possible to open a file in a git branch without checking out that branch? How?
5 Answers
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What is the Oracle equivalent of SQL Server's IsNull() function?
In SQL Server we can type IsNull() to determine if a field is null. Is there an equivalent function in PL/SQL?
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Bypass confirmation prompt for pip uninstall
I'm trying to uninstall all django packages in my superuser environment to ensure that all my webapp dependencies are installed to my virtualenv.
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Iterating over each line of ls -l output
I want to iterate over each line in the output of: ls -l /some/dir/*
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How to have Emacs auto-refresh all buffers when files have changed on disk?
...sse). Is there any way to tell emacs to refresh all the buffers from disk in one fell swoop, instead of having to do each one individually by reloading the file?
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Change how fast “title” attribute's tooltip appears
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No, there's no way. The title attribute is implemented in a browser dependent fashion. For example I remember differences between IE and FF when using \r\n inside it.
Mozilla's docs explain the limits and functionality well.
If you want customization you may take a look at thi...
Does Notepad++ show all hidden characters?
In Notepad++ I have set "replace tab with 2 spaces".
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5
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@Basic(optional = false) vs @Column(nullable = false) in JPA
...ference between @Basic(optional = false) and @Column(nullable = false) in JPA persistence?
2 Answers
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git submodule tracking latest
We are moving our (huge) project to git and we are thinking about using submodules. Our plan is to have three different heads in the superproject: release,stable,latest. The project leads will handle the release and stable branches. They will move the submodules as required.
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