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What is the difference between a pseudo-class and a pseudo-element in CSS?
...e a pseudo-class while a user interacts with the document.
Source
What does this mean?
The important nature of pseudo-classes is stated in the very first sentence: "the pseudo-class concept [...] permit selection". It enables the author of an stylesheet to differ between elements based on infor...
How to get first N elements of a list in C#?
...
Does it throw exception if there are only, for example, 3 items in the list? Or will it take as many as there are up to 5?
– bobek
Feb 22 '12 at 21:08
...
Where is body in a nodejs http.get response?
...quest body
req.write('data\n');
req.write('data\n');
req.end();
http.get does the same thing as http.request except it calls req.end() automatically.
var options = {
host: 'www.google.com',
port: 80,
path: '/index.html'
};
http.get(options, function(res) {
console.log("Got response: " + ...
Is this a “good enough” random algorithm; why isn't it used if it's faster?
...etimes it reaches the desired uniform distribution, but more than often it doesn't. Here's one of the more extreme examples, it's even beyond the borders of the graph:
QR distribution |8000 |9000 |10000 |11000 |12000
0.0xxx: 41788 :##################################################
...
UITableView - change section header color
... an old question, but I think the answer needs to be updated.
This method does not involve defining and creating your own custom view.
In iOS 6 and up, you can easily change the background color and the text color by defining the
-(void)tableView:(UITableView *)tableView
willDisplayHeaderVie...
Haskell function composition (.) and function application ($) idioms: correct use
...han this one; from one of the authors himself. :) And that makes sense, it does look much quieter on the page as I read. Marking this as the answer because It directly answers the question. Thankyou for the response; and, infact, the book.
– Robert Massaioli
Ju...
How to write file if parent folder doesn't exist?
... noop. Otherwise it creates all missing directories for you.
This module does what you want: https://npmjs.org/package/writefile . Got it when googling for "writefile mkdirp". This module returns a promise instead of taking a callback, so be sure to read some introduction to promises first. It mig...
Finding what branch a Git commit came from
...
While Dav is correct that the information isn't directly stored, that doesn't mean you can't ever find out. Here are a few things you can do.
Find branches the commit is on
git branch -a --contains <commit>
This will tell you all branches which have the given commit in their history. ...
nil detection in Go
...lang.org/p/k2EmRcels6. Whether it's '!=' or '==' makes no difference; what does make a difference is whether config is a struct or pointer to struct.
– stewbasic
Oct 18 '17 at 2:28
...
Select elements by attribute
...('#A').attr('myattr')) {
// attribute exists
} else {
// attribute does not exist
}
EDIT:
The above will fall into the else-branch when myattr exists but is an empty string or "0". If that's a problem you should explicitly test on undefined:
if ($('#A').attr('myattr') !== undefined) {
...