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Remove rows with all or some NAs (missing values) in data.frame
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but using complete.cases is quite a lot more clear, and faster.
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Rails: How does the respond_to block work?
I'm going through the Getting Started with Rails guide and got confused with section 6.7. After generating a scaffold I find the following auto-generated block in my controller:
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AngularJS access parent scope from child controller
... is 1. Inheriting the parent scope can have potential namespace conflicts, and 2. Requires knowledge that parent controller alias is 'pc'. This makes re-use more difficult.
– tchen
Jul 31 '14 at 15:52
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Is it possible to set a custom font for entire of application?
... same.
Is it possible to set this as default font, at application start up and then use it elsewhere in the application? When set, how do I use it in my layout XMLs?
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Pass variables to Ruby script via command line
I've installed RubyInstaller on Windows and I'm running IMAP Sync but I need to use it to sync hundreds of accounts. If I could pass these variables to it via command line I could automate the whole process better.
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Redis connection to 127.0.0.1:6379 failed - connect ECONNREFUSED
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After you install redis, type from terminal:
redis-server
and you'll have redis running
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OpenSuSE 安装bpftrace - 操作系统(内核) - 清泛网 - 专注IT技能提升
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-p PID enable USDT probes on PID
-c 'CMD' run CMD and enable USDT probes on resulting process
--unsafe allow unsafe builtin functions
-v verbose messages
--info Print information about kernel BPF support
-V, --version bpftrace v...
OpenSuSE 安装bpftrace - 操作系统(内核) - 清泛网 - 专注IT技能提升
...
-p PID enable USDT probes on PID
-c 'CMD' run CMD and enable USDT probes on resulting process
--unsafe allow unsafe builtin functions
-v verbose messages
--info Print information about kernel BPF support
-V, --version bpftrace v...
OpenSuSE 安装bpftrace - 操作系统(内核) - 清泛网移动版 - 专注IT技能提升
...
-p PID enable USDT probes on PID
-c 'CMD' run CMD and enable USDT probes on resulting process
--unsafe allow unsafe builtin functions
-v verbose messages
--info Print information about kernel BPF support
-V, --version bpftrace v...
OpenSuSE 安装bpftrace - 操作系统(内核) - 清泛网 - 专注IT技能提升
...
-p PID enable USDT probes on PID
-c 'CMD' run CMD and enable USDT probes on resulting process
--unsafe allow unsafe builtin functions
-v verbose messages
--info Print information about kernel BPF support
-V, --version bpftrace v...