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How to run a command in the background and get no output?
...o shell scripts a.sh and b.sh . In a.sh and b.sh I have a infinite for loop and they print some output to the terminal. I want to write another script which calls both a.sh and b.sh but I want the user to regain control of the terminal immediately, instead of having the script run infinit...
How to check if object property exists with a variable holding the property name?
I am checking for the existence of an object property with a variable holding the property name in question.
6 Answers
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Does JSON syntax allow duplicate keys in an object?
...ther standards will refer to this one, strictly adhering to the JSON text format, while
imposing restrictions on various encoding details. Such standards may require specific behaviours. JSON
itself specifies no behaviour.
Further down in the standard (p. 2), the specification for a JSON ob...
What does Docker add to lxc-tools (the userspace LXC tools)?
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From the Docker FAQ:
Docker is not a replacement for lxc. "lxc" refers to capabilities of the linux kernel (specifically namespaces and control groups) which allow sandboxing processes from one another, and controlling their resource allocations.
On top of this low-level fo...
Using the “final” modifier whenever applicable in Java [closed]
In Java, there is a practice of declaring every variable (local or class), parameter final if they really are.
25 Answers
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Most underused data visualization [closed]
...really agree with the other posters: Tufte's books are fantastic and well worth reading.
First, I would point you to a very nice tutorial on ggplot2 and ggobi from "Looking at Data" earlier this year. Beyond that I would just highlight one visualization from R, and two graphics packages (which a...
Shards and replicas in Elasticsearch
...an elasticsearch node which tries to join an existing cluster if available or creates a new one. Let's say you created your own new cluster with a single node, the one that you just started up. We have no data, therefore we need to create an index.
When you create an index (an index is automaticall...
What is a “translation unit” in C++
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From here: (wayback machine link)
According to standard C++ (wayback machine link) :
A translation unit is the basic unit
of compilation in C++. It consists of
the contents of a single source file,
plus the contents of any header files
directly or ind...
How do you detect the clearing of a “search” HTML5 input?
...ybe others). Is there a way to detect when this X is clicked in Javascript or jQuery other than, say, detecting when the box is clicked at all or doing some sort of location click-detecting (x-position/y-position)?
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How to create streams from string in Node.Js?
I am using a library, ya-csv , that expects either a file or a stream as input, but I have a string.
11 Answers
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