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Ruby arrays: %w vs %W
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236
%w quotes like single quotes '' (no variable interpolation, fewer escape sequences), while %W q...
What is the relationship between Looper, Handler and MessageQueue in Android?
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103
A Looper is a message handling loop: it reads and processes items from a MessageQueue. The Loope...
Circular gradient in android
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Viktor Yakunin
2,71833 gold badges2020 silver badges3333 bronze badges
answered Mar 18 '10 at 13:55
Dan LewDan Lew
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Is there a function to make a copy of a PHP array to another?
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edited Nov 23 '15 at 12:02
z0nam
44577 silver badges1717 bronze badges
answered Oct 7 '09 ...
C++ SFINAE examples?
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73
Heres one example (from here):
template<typename T>
class IsClassT {
private:
typed...
How to get the Display Name Attribute of an Enum member via MVC razor code?
...elper<T>
where T : struct, Enum // This constraint requires C# 7.3 or later.
{
public static IList<T> GetValues(Enum value)
{
var enumValues = new List<T>();
foreach (FieldInfo fi in value.GetType().GetFields(BindingFlags.Static | BindingFlags.Public))
...
HTTP error 403 in Python 3 Web Scraping
...ng to scrap a website for practice, but I kept on getting the HTTP Error 403 (does it think I'm a bot)?
8 Answers
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How can I extract embedded fonts from a PDF as valid font files?
...of characters and may not represent the complete typeface.
Update: (Jul 2013) Recent versions of mupdf have seen an internal reshuffling and renaming of their binaries, not just once, but several times. The main utility used to be a 'swiss knife'-alike binary called mubusy (name inspired by busybox...
How do I translate an ISO 8601 datetime string into a Python datetime object? [duplicate]
...olid date parsing. If you were to get an ISO 8601 string like: 2010-05-08T23:41:54.000Z you'd have a fun time parsing that with strptime, especially if you didn't know up front whether or not the timezone was included. pyiso8601 has a couple of issues (check their tracker) that I ran into during my ...
“Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP
..., "", "0", null, false or [].
Example:
$o = [];
@$var = ["",0,null,1,2,3,$foo,$o['myIndex']];
array_walk($var, function($v) {
echo (!isset($v) || $v == false) ? 'true ' : 'false';
echo ' ' . (empty($v) ? 'true' : 'false');
echo "\n";
});
Test the above snippet in the 3v4l.org onlin...