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Some built-in to pad a list in python
...
a += [''] * (N - len(a))
or if you don't want to change a in place
new_a = a + [''] * (N - len(a))
you can always create a subclass of list and call the method whatever you please
class MyList(list):
def ljust(self, n, fillvalue=''):
return self + [fillvalue] * (n - len(self))
a...
C++ Returning reference to local variable
...cated inside func2() and released outside in the next line. It is a rather error-prone way to handle memory though, like I said you would use some variant of RAII instead. By the way, you sound like you're learning C++. I recommend picking up a good introductory C++ book to learn from. Also, for fut...
How to pass object with NSNotificationCenter
... case key1
}
}
Why should I definitely do this ? To avoid costly typo errors, enjoy renaming, enjoy find usage etc...
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Find all records which have a count of an association greater than zero
...d").exists? yields either true or false. Project.where(true) is an ArgumentError.
– Les Nightingill
Oct 18 '19 at 4:41
...
Remove Elements from a HashSet while Iterating [duplicate]
... all of the elements of this collection that satisfy the given predicate.
Errors or runtime exceptions thrown during iteration or by the predicate
are relayed to the caller.
Interesting note:
The default implementation traverses all elements of the collection using its iterator().
Each matchin...
How to zero pad a sequence of integers in bash so that all have the same width?
...mat the numbers as it outputs the list. For example:
for i in $(seq -f "%05g" 10 15)
do
echo $i
done
will produce the following output:
00010
00011
00012
00013
00014
00015
More generally, bash has printf as a built-in so you can pad output with zeroes as follows:
$ i=99
$ printf "%05d\n" $...
Migrating from JSF 1.2 to JSF 2.0
...ava.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-facesconfig_2_0.xsd"
version="2.0">
Note: when you're using JSF 2.2 or newer, use the http://xmlns.jcp.org namespace domain instead of http://java.sun.com throughout the above XML snippet.
Ensure that root declaration of web.xm...
How can I include a YAML file inside another?
...nstructor.
import yaml
import os
class Loader(yaml.SafeLoader):
def __init__(self, stream):
self._root = os.path.split(stream.name)[0]
super(Loader, self).__init__(stream)
def include(self, node):
filename = os.path.join(self._root, self.construct_scalar(node))...
How do I pass parameters into a PHP script through a webpage?
...cript over the web) is using the query string and access them through the $_GET superglobal:
Go to http://yourdomain.com/path/to/script.php?argument1=arg1&argument2=arg2
... and access:
<?php
$argument1 = $_GET['argument1'];
$argument2 = $_GET['argument2'];
?>
If you want the script t...
Is it possible to embed animated GIFs in PDFs?
...PDF with Adobe InDesign". When I try to open my PDF with InDesign I get an error "InDesign may not support the file format..."
– ChaosFreak
Jun 3 at 18:30
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