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Why JSF saves the state of UI components on server?
...lue>
</context-param>
It will then be serialized to an encrypted string in a hidden input field with the name javax.faces.ViewState of the form.
I dont understand what the benefit of keeping the UI component's state on the server side is. Isn't directly passing the validated/converted da...
Understanding prototypal inheritance in JavaScript
...r.prototype.constructor === Car, but it is equally true for Array, Object, String, ...etc.
But if you reassign a different object to prototype, that invariance is broken. Usually this is not a problem (as you have noticed), but it is better to reinstate it, because it answers the question "Which c...
How to use Greek symbols in ggplot2?
...like adding '*' to the ticks)
Just use unicode characters within the text string.
seems to work well for all options I can think of.
Edit: previously it did not work in facet labels. This has apparently been fixed at some point.
library(ggplot2)
ggplot(mtcars,
aes(mpg, disp, color=factor...
How to create the perfect OOP application [closed]
...e a kind of Item
Items may be Imported Goods
An Item has a Name which is a String
An Item has a Shelf Price which is a Decimal. (Note: does an item really have a price? two identical washing machines might be for sale for different prices at different stores, or at the same store at different times....
Mock vs MagicMock
...gic methods:
>>> int(Mock())
TypeError: int() argument must be a string or a number, not 'Mock'
>>> int(MagicMock())
1
>>> len(Mock())
TypeError: object of type 'Mock' has no len()
>>> len(MagicMock())
0
And these which may not be as intuitive (at least not int...
Haskell: How is pronounced? [closed]
...ut it makes a fine Applicative, in which case (<*>) becomes a way of stringing together a generalized version of zipWith, so perhaps we can imagine calling it fzipWith?
This zipping idea actually brings us full circle. Recall that math stuff earlier, about monoidal functors? As the name sug...
What exactly are iterator, iterable, and iteration?
... ITERABLE is:
anything that can be looped over (i.e. you can loop over a string or file) or
anything that can appear on the right-side of a for-loop: for x in iterable: ... or
anything you can call with iter() that will return an ITERATOR: iter(obj) or
an object that defines __iter__ that retur...
Cancellation token in Task constructor: why?
...in the accepted answer by Max Galkin:
class Program
{
static void Main(string[] args)
{
Console.WriteLine("*********************************************************************");
Console.WriteLine("* Start canceled task, don't pass token to constructor");
Console.Wri...
addEventListener vs onclick
...t respond to errors appropriately. For example, if you by mistake assign a string to window.onload, for example: window.onload = "test";, it won't throw any errors. Your code wouldn't work and it would be really hard to find out why. .addEventListener() however, would throw error (at least in Firefo...
Meaning of Git checkout double dashes
...k-dot-see.
Git 2.5 looses the heuristic to declare that with a wildcard string the user likely meant to give us a pathspec.
git checkout 'a*'
# same as
git checkout -- 'a*'
See commit 28fcc0b (02 May 2015) by Duy Nguyen (nguyenlocduy).
(Merged by Junio C Hamano -- gitster -- in commit 949d167,...