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How do I get a background location update every n minutes in my iOS application?
...he three allowed types of background execution.
Note: I lost some time by testing this in the simulator where it doesn't work. However, it works fine on my phone.
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What is the purpose of AsQueryable()?
...ble data source using an in-memory data source so that you can more easily test methods that will eventually be used on a non-enumerable based IQueryable.
You can write helper methods for manipulating collections that can apply to either in-memory sequences or external data sources. If you write yo...
Currency formatting in Python
...
Very late note: Testing this, it does not appear to intelligently format currency, as it simply sticks the appropriate symbol before the amount (formatted in what appears to be the locale you have set, which is reasonable), regardless of whe...
How to access class constants in Twig?
...PERSON') %}
See documentation for the constant function and the constant test.
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How can I perform a culture-sensitive “starts-with” operation from the middle of a string?
...ex, ref length2, options))
return length2;
}
}
I tested with the particular case, and the comparision down to about 3.
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Regular expression to match a word or its prefix
...
Use this live online example to test your pattern:
Above screenshot taken from this live example: https://regex101.com/r/cU5lC2/1
Matching any whole word on the commandline.
I'll be using the phpsh interactive shell on Ubuntu 12.10 to demonstrate the P...
PHP cURL HTTP CODE return 0
...ost no found), so with the last one, there is nobody to send a code back.
Tested using the code below.
<?php
$html_brand = "www.google.com";
$ch = curl_init();
$options = array(
CURLOPT_URL => $html_brand,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HEADER =&g...
Why does sun.misc.Unsafe exist, and how can it be used in the real world?
...xception in the Dynamic Implementation of the Interface.
import org.junit.Test;
/** need to allow forbidden references! */ import sun.misc.Unsafe;
/**
* Demonstrate how to throw an undeclared checked exception.
* This is a hack, because it uses the forbidden Class {@link sun.misc.Unsafe}.
*/
pu...
Cleaner way to update nested structures
...collect information. Kiama supports Rewriting, see the examples in RewriterTests, and watch this video. Here's a snippet to whet your appetite:
// Test expression
val e = Mul (Num (1), Add (Sub (Var ("hello"), Num (2)), Var ("harold")))
// Increment every double
val incint = everywheretd (rule { c...
What should I set JAVA_HOME environment variable on macOS X 10.6?
...for me is simply put in
$ export JAVA_HOME=$(/usr/libexec/java_home)
To test whether it works, put in
$ echo $JAVA_HOME
it shows
/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
you can also test
$ which java
...