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What's the difference between integer class and numeric class in R
...t common of which are double (for double precision floating point numbers) and integer. R will automatically convert between the numeric classes when needed, so for the most part it does not matter to the casual user whether the number 3 is currently stored as an integer or as a double. Most math ...
Why can't I use switch statement on a String?
...clean, high-level syntax using String constants in case declarations is expanded at compile-time into more complex code following a pattern. The resulting code uses JVM instructions that have always existed.
A switch with String cases is translated into two switches during compilation. The first ma...
Responding with a JSON object in Node.js (converting object/array to JSON string)
I'm a newb to back-end code and I'm trying to create a function that will respond to me a JSON string. I currently have this from an example
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Shorter syntax for casting from a List to a List?
...ible because it would require co/contravariance of the List<T> type, and that just can't be guaranteed in every case. Please read on to see the solutions to this casting problem.
While it seems normal to be able to write code like this:
List<Animal> animals = (List<Animal>) mamma...
Reset keys of array elements in php?
...es($ret); is enough to reset numeric keys
– Marek Lewandowski
May 7 '13 at 8:24
2
I dont know if ...
Vim multiline editing like in sublimetext?
I started to use gvim, and I can't quite understand how the multiline edit works in gvim.
7 Answers
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Vagrant reverse port forwarding?
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When you run vagrant ssh, it's actually using this underlying command:
ssh -p 2222 -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -o LogLevel=ERROR -o IdentitiesOnly=yes -i ~/.vagrant.d/insecure_private_key vagrant@127.0.0.1
SSH supports forwarding ports in the direction you ...
How to see which plugins are making Vim slow?
...et more | verbose function {function_name} will show you function contents and where it is located.
– ZyX
Aug 29 '15 at 19:26
28
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Deploy a project using Git push
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I found this script on this site and it seems to work quite well.
Copy over your .git directory to your web server
On your local copy, modify your .git/config file and add your web server as a remote:
[remote "production"]
url = username@webserver:/pa...
What does git rev-parse do?
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git rev-parse is an ancillary plumbing command primarily used for manipulation.
One common usage of git rev-parse is to print the SHA1 hashes given a revision specifier. In addition, it has various options to format this output such as --short for printing a shorter ...