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How do I set a variable to the output of a command in Bash?
I have a pretty simple script that is som>me m>thing like the following:
14 Answers
14
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How do I prevent node.js from crashing? try-catch doesn't work
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Other answers are really insane as you can read at Node's own docum>me m>nts at http://nodejs.org/docs/latest/api/process.html#process_event_uncaughtexception
If som>me m>one is using other stated answers read Node Docs:
Note that uncaughtException is a very crude m>me m>chanism for exception handlin...
Speed up the loop operation in R
...performance problem in R. I wrote a function that iterates over a data.fram>me m> object. It simply adds a new column to a data.fram>me m> and accumulates som>me m>thing. (simple operation). The data.fram>me m> has roughly 850K rows. My PC is still working (about 10h now) and I have no idea about the runtim>me m>.
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Python class inherits object
...ou'll always want to go for new-style classes. The perks of doing so are num>me m>rous, to list som>me m> of them:
Support for descriptors. Specifically, the following constructs are made possible with descriptors:
classm>me m>thod: A m>me m>thod that receives the class as an implicit argum>me m>nt instead of the insta...
Accessing private m>me m>mber variables from prototype-defined functions
...riables (those defined in the constructor), available to prototype-defined m>me m>thods?
25 Answers
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What is the equivalent of the C# 'var' keyword in Java?
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There is none. Alas, you have to type out the full type nam>me m>.
Edit: 7 years after being posted, type inference for local variables (with var) was added in Java 10.
Edit: 6 years after being posted, to collect som>me m> of the comm>me m>nts from below:
The reason C# has the var keyword i...
Copy constructor for a class with unique_ptr
How do I implem>me m>nt a copy constructor for a class that has a unique_ptr m>me m>mber variable? I am only considering C++11.
6 A...
What is the m>me m>aning of “POSIX”?
What is POSIX? I have read the Wikipedia article and I read it every tim>me m> I encounter the term. The fact is that I never really understood what it is.
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Sequelize.js: how to use migrations and sync
...The syntax is rather plain:
sequelize init
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sequelize model:create --nam>me m> User --attributes first_nam>me m>:string,last_nam>me m>:string,bio:text
This will create both model AND migration. Then, manually m>me m>rge your existing models with generated with sequelize-cli, and do the sam>me m> with migrations. After...
Benefits of inline functions in C++?
...he compiler outputs, but with today's optimized compilers, fast CPUs, huge m>me m>mory etc. (not like in the 1980< where m>me m>mory was scarce and everything had to fit in 100KB of m>me m>mory) what advantages do they really have today?
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