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Why is extending native objects a bad practice?
...e the behaviour of something that is also used by other code there is a risk you will break that other code.
When it comes adding methods to the object and array classes in javascript, the risk of breaking something is very high, due to how javascript works. Long years of experience have taught me ...
How to recursively list all the files in a directory in C#?
...files and comparing names, just print out the names.
It can be modified like so:
static void DirSearch(string sDir)
{
try
{
foreach (string d in Directory.GetDirectories(sDir))
{
foreach (string f in Directory.GetFiles(d))
{
Console.W...
Upgrading Node.js to latest version
...
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.
...
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?
...
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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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?
...
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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