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Does Java have something like C#'s ref and out keywords?
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That is not 100% true, If you pass in an array or a class the reference to the array or object is passed in by value, You can change internals to the array or object and it will be reflected in the caller.
– Romain Hippeau
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bs4.FeatureNotFound: Couldn't find a tree builder with the features you requested: lxml. Do you need
...c OS 10.7.x. I have Python 2.7.1, and followed this tutorial to get Beautiful Soup and lxml, which both installed successfully and work with a separate test file located here . In the Python script that causes this error, I have included this line:
from pageCrawler import comparePages
And i...
How can I delete the current line in Emacs?
...k # Kill line from current point
There is also
C-S-backspace # Ctrl-Shift-Backspace
which invokes M-x kill-whole-line.
If you'd like to set a different global key binding, you'd put this in ~/.emacs:
(global-set-key "\C-cd" 'kill-whole-line) # Sets `C-c d` to `M-x kill-whole-line`
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How to align 3 divs (left/center/right) inside another div?
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how would you do it if the container wasn't 100%? Im trying something like that here, I would like the div do stay in the right of the container, but it floats to the right of the page
– Tiago
Nov 9 '10 at ...
In C#, what is the difference between public, private, protected, and having no access modifier?
...l my college years I have been using public , and would like to know the difference between public , private , and protected ?
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How to convert an enum type variable to a string?
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There really is no beautiful way of doing this. Just set up an array of strings indexed by the enum.
If you do a lot of output, you can define an operator<< that takes an enum parameter and does the lookup for you.
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Separators for Navigation
...he first one.
For example:
#nav li + li {
background:url('seperator.gif') no-repeat top left;
padding-left: 10px
}
This CSS adds the image to every list item that follows another list item - in other words all of them but the first.
NB. Be aware the adjacent selector (li + li) doesn't w...
Using getopts to process long and short command line options
...ith caveats:
getopts can't enforce the opt spec. It can't return errors if the user supplies an invalid option. You have to do your own error-checking as you parse OPTARG.
OPTARG is used for the long option name, which complicates usage when your long option itself has an argument. You end up hav...
What does “=>” mean in PHP?
...ke "a => b" means, for an associative array (some languages, like Perl, if I remember correctly, call those "hash"), that 'a' is a key, and 'b' a value.
You might want to take a look at the documentations of, at least:
foreach
arrays
Here, you are having an array, called $user_list, and you ...
Rename a dictionary key
...t;>> oldkey, newkey = '2', 'potato'
>>> OrderedDict((newkey if k == oldkey else k, v) for k, v in _.viewitems())
OrderedDict([('1', 'a'), ('potato', 'b'), ('3', 'c')])
Modifying the key itself, as this question seems to be asking, is impractical because dict keys are usually immutab...