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Upgrading Node.js to latest version
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Ubuntu Linux/Mac:
The module n makes version-management easy:
sudo npm install n -g
For the latest stable version:
sudo n stable
For the latest version:
sudo n latest
###Windows:
just reinstall node from the .msi in Windows from the node website.
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From an array of objects, extract value of a property as array
...);
OR
let result = objArray.map(({ foo }) => foo)
You can also check Array.prototype.map().
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Duplicate symbols for architecture x86_64 under Xcode
...nctions twice.
As the issue disappear after removing -ObjC from Other Linker Flags,
this means that this option result that functions loads twice:
from Technical Q&A
This flag causes the linker to load every object file in the library
that defines an Objective-C class or category. Whil...
Why are quaternions used for rotations?
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Gimbal lock is one reason, although as you say it is only a problem with Euler angles and is easily solvable. Euler angles are still used when memory is a concern as you only need to store 3 numbers.
For quaternions versus a 3x3 rotat...
How do I convert a string to a number in PHP?
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deceze♦deceze
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Replace all 0 values to NA
...That is, R does not reserve any space for this null object.2 Meanwhile, looking at ?'NA' we see that
NA is a logical constant of length 1 which contains a missing value
indicator. NA can be coerced to any other vector type except raw.
Importantly, NA is of length 1 so that R reserves some sp...
How do I break a string over multiple lines?
In YAML, I have a string that's very long. I want to keep this within the 80-column (or so) view of my editor, so I'd like to break the string. What's the syntax for this?
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How to install python3 version of package via pip on Ubuntu?
... python2.7 and python3.2 installed in Ubuntu 12.04 .
The symbolic link python links to python2.7 .
17 Answers
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WPF ToolBar: how to remove grip and overflow
...t and the overflow area to the right. they are both grayed out, but we'd like them to not be displayed at all.
6 Answers
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String formatting named parameters?
I know it's a really simple question, but I have no idea how to google it.
6 Answers
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