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Concatenating two lists - difference between '+=' and extend()
I've seen there are actually two (maybe more) ways to concatenate lists in Python:
One way is to use the extend() method:
9...
Google Chrome Extensions - Can't load local images with CSS
...ion that uses the content script feature to modify a website. More specifically, the background-image of said website.
8 ...
Initialise a list to a specific length in Python [duplicate]
...th [['' for i in range(5)] for j in range(5)] instead of >>> card_strings = [['']*5]*5 >>> card_strings[0][0] = "Well that was unexpected..."
– RobotHumans
Sep 19 '15 at 9:18
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Average of 3 long integers
...
This code will work, but isn't that pretty.
It first divides all three values (it floors the values, so you 'lose' the remainder), and then divides the remainder:
long n = x / 3
+ y / 3
+ z / 3
+ ( x % 3
+ y % 3
+ z % 3
)...
Importing files from different folder
...ere from a search engine, this is not the answer you are looking for. Typically you would structure your files into packages (see other answers) instead of modifying the search path.
By default, you can't. When importing a file, Python only searches the directory that the entry-point script is runn...
Place a button right aligned
...lass="btn text-right">Call to Action</a>. This way you don't need extra markup or rules to clear out floated elements.
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ASP.NET MVC Yes/No Radio Buttons with Strongly Bound Model MVC
... id = "married-true", @checked = 'checked' }
Note that you can bind to a string by replacing true and false with the string values.
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What are rvalues, lvalues, xvalues, glvalues, and prvalues?
...e they needed? Probably not if we wish to forfeit the new features. But to allow better optimization we should probably embrace them.
Quoting n3055:
An lvalue (so-called, historically,
because lvalues could appear on the
left-hand side of an assignment
expression) designates a function or
an obj...
UICollectionView inside a UITableViewCell — dynamic height?
...xtension:
extension UIView {
func constraint(byIdentifier identifier: String) -> NSLayoutConstraint? {
return constraints.first(where: { $0.identifier == identifier })
}
}
NOTE: You will need to set the identifier on these constraints in your storyboard, or wherever they are be...
Getting Django admin url for an object
...e was an easy way to get the admin url of an object, and I had written a small filter that I'd use like this: <a href="{{ object|admin_url }}" .... > ... </a>
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