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List comprehension vs. lambda + filter
... list comprehension only accesses local variables. If you are using Python 3.x the list comprehension runs in a separate function so it will also be accessing value through a closure and this difference won't apply.
The other option to consider is to use a generator instead of a list comprehension:...
How to jump directly to a column number in Vim
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339
The | command does what you want, as in 30| will take you to column 30.
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Is it safe to get values from a java.util.HashMap from multiple threads (no modification)?
... field (JLS 17.5).
The ones most interesting for your scenario are (2), (3) and (4). In particular, (3) applies directly to the code I have above: if you transform the declaration of MAP to:
public static volatile HashMap<Object, Object> MAP;
then everything is kosher: readers who see a n...
Get push notification while App in foreground iOS
...ssage while app is in foreground, use the following method.
iOS 10, Swift 3/4 :
// This method will be called when app received push notifications in foreground
func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completio...
How do you do a limit query in JPQL or HQL?
In Hibernate 3, is there a way to do the equivalent of the following MySQL limit in HQL?
14 Answers
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'^M' character at end of lines
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3
On some systems (i.e. Ubuntu) the name of this command is "fromdos"
– bobwienholt
Dec 4 '12 at 16:12
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Literal notation for Dictionary in C#?
...ank you.
– pimvdb
Feb 12 '11 at 20:43
3
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How to combine two jQuery results
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answered Nov 27 '08 at 14:53
SimonSimon
36.5k22 gold badges2929 silver badges2727 bronze badges
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Accept function as parameter in PHP
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153
It's possible if you are using PHP 5.3.0 or higher.
See Anonymous Functions in the manual.
In ...
What is the best Java email address validation method? [closed]
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134
votes
Apache Commons is generally known as a solid project. Keep in mind, though,...