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Extract hostname name from string
...ered the root domain (i.e. www.食狮.公司.cn, b.c.kobe.jp, etc.). Read more about it here.
Try:
npm install --save psl
Then with my "extractHostname" implementation run:
let psl = require('psl');
let url = 'http://www.youtube.com/watch?v=ClkQA2Lb_iE';
psl.get(extractHostname(url)); // return...
Why git AuthorDate is different from CommitDate?
I lookup my git logs and find that the AuthorDate and CommitDate is slightly different for some of my commits:
2 Answers
...
How to calculate an angle from three points? [closed]
...n the angle that P1 is the vertex of then using the Law of Cosines should work:
arccos((P122
+ P132 - P232) / (2 *
P12 * P13))
where P12 is the length of the segment from P1 to P2, calculated by
sqrt((P1x -
P2x)2 +
(P1y -
P2y)2)
...
When to use pip requirements file versus install_requires in setup.py?
...ight include version requirements if you know that some versions will not work; but it shouldn't have version requirements where you aren't sure (e.g., you aren't sure if a future release of a dependency will break your library or not).
Requirements files on the other hand should indicate what you ...
In Java, what does NaN mean?
...
Taken from this page:
"NaN" stands for "not a number". "Nan"
is produced if a floating point
operation has some input parameters
that cause the operation to produce
some undefined result. For example,
0.0 divided by 0.0 is arithmetically undefined. Ta...
How do I move files in node.js?
...can I move files (like mv command shell) on node.js? Is there any method for that or should I read a file, write to a new file and remove older file?
...
What to do about a 11000 lines C++ source file?
... and could stand as an independent unit. Move this into its own file, and for that matter into its own class, in all branches. Because it's stable, this won't cause (many) "awkward" merges that have to be applied to a different file from the one they were originally made on, when you merge the chang...
Difference between new and override
...
virtual methods and must be used on
abstract methods. This indicates for
the compiler to use the last defined
implementation of a method. Even if
the method is called on a reference to
the base class it will use the
implementation overriding it.
public class Base
{
public virtua...
Casting to string in JavaScript
...und three ways to cast a variable to String in JavaScript.
I searched for those three options in the jQuery source code, and they are all in use .
I would like to know if there are any differences between them:
...
How to handle the modal closing event in Twitter Bootstrap?
...
Updated for Bootstrap 3 and 4
Bootstrap 3 and Bootstrap 4 docs refer two events you can use.
hide.bs.modal: This event is fired immediately when the hide instance method has been called.
hidden.bs.modal: This event is fired whe...