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Predicate Delegates in C#
...gument and always return boolean type. Basically, the predicate is used to test the condition - true/false. Many classes support predicate as an argument. For e.g. list.findall expects the parameter predicate. Here is an example of the predicate.
Imagine a function pointer with the signature -
b...
Check if directory mounted with bash
...s a non-zero exit status if there are no matches. There is no need for the test, or the subshell created by $(). if command | grep -q 'stuff'; then ...
– jordanm
Feb 23 '12 at 23:54
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How to handle code when app is killed by swiping in android?
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@Sergio yes it is the safest method and I tested it on larger scale Application.
– Ahmad
Aug 22 '19 at 10:17
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Why does Java allow us to compile a class with a name different than the file name?
I have a file Test.java and the following code inside it.
8 Answers
8
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Volatile boolean vs AtomicBoolean
...ndSet(), and others that implement multiple operations (get/increment/set, test/set) without locking. That's why the Atomic* classes are so powerful.
For example, if multiple threads are using the following code using ++, there will be race conditions because ++ is actually: get, increment, and set...
Why does HTML5 form-validation allow emails without a dot?
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As a sidenote one of the shortest working email addresses ( recordsetter.com/world-record/shortest-email-address/4327 ) is au@ua
– Kyborek
Oct 16 '18 at 7:09
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Thread.Sleep replacement in .NET for Windows Store
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There is almost NO reason (except for testing purposes) to EVER use Thread.Sleep().
IF (and only if) you have a very good reason to send a thread to sleep, you might want to check Task.Delay() , which you can await to "wait" for a specified time. Though it's nev...
iOS Equivalent For Android Shared Preferences
...idSave)
{
// Couldn't save (I've never seen this happen in real world testing)
}
.
Swift:
Reading:
let preferences = NSUserDefaults.standardUserDefaults()
let currentLevelKey = "currentLevel"
if preferences.objectForKey(currentLevelKey) == nil {
// Doesn't exist
} else {
let cur...
phonegap open link in browser
...a 3.4.1 and android 4.2. I did not need a plugin. I will report back after testing on iOS7.
– pgsandstrom
May 4 '14 at 17:17
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How do you reference a capture group with regex find and replace in Visual Studio 2012, 2013, 2015,
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Thinking about that now, it would make sense. I haven't tested it. Feel free to throw an edit in there.
– SgtPooki
Mar 10 '16 at 21:56
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