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If my interface must return Task what is the best way to have a no-operation implementation?
...mprove performance even more if you cache the already completed task since all instances of completed tasks are the same:
public static class TaskExtensions
{
public static readonly Task CompletedTask = Task.FromResult(false);
}
With TaskExtensions.CompletedTask you can use the same instance ...
How to use ArrayAdapter
...created row.xml in layouts, but don't know how to show both reason and long_val in the ListView using ArrayAdapter.
5 Answe...
What's the standard way to work with dates and times in Scala? Should I use Java types or there are
... it seems that scala-time is no longer maintained.
import com.github.nscala_time.time.Imports._
DateTime.now // returns org.joda.time.DateTime = 2009-04-27T13:25:42.659-07:00
DateTime.now.hour(2).minute(45).second(10) // returns org.joda.time.DateTime = 2009-04-27T02:45:10.313-07:00
DateTime.now ...
How to build an APK file in Eclipse?
...
The APK file is in the /workspace/PROJECT_FOLDER/bin directory. To install the APK file in a real device:
Connect your real device with a PC/laptop.
Go to sdk/tools/ using a terminal or command prompt.
adb install <FILE PATH OF .APK FILE>
That's it...
...
What is the meaning of “$” sign in JavaScript
...of $ in JavaScript. $ is simply a valid JavaScript identifier.
JavaScript allows upper and lower letters, numbers, and $ and _. The $ was intended to be used for machine-generated variables (such as $0001).
Prototype, jQuery, and most javascript libraries use the $ as the primary base object (or f...
Error: Can't set headers after they are sent to the client
...) {
if (err) {
res.send(err);
} else {
User.findOneAndUpdate({ _id: req.user._id }, { $push: { article: doc._id } })
.exec(function(err, doc2) {
if (err) res.send(err);
else res.json(doc2); // Will be called second.
})
res.json(doc1); // Will be ...
SVN Repository Search [closed]
... findstr filename
Otherwise checkout and do filesystem search:
egrep -r _code_ .
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How do you convert a time.struct_time object into a datetime object?
...
This will usually work. However, it will fail if the time tuple is beyond the values mktime accepts, for example for the value (1970, 1, 1, 0, 0, 0, 0, 1, -1). I have encountered this after parsing the Date header on an HTTP request which...
Python Selenium accessing HTML source
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What if we need to get page source after all the javascript executes.?
– Yogeesh Seralathan
Jun 13 '14 at 5:58
4
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Is there a download function in jsFiddle?
...e site that shows the results.
And then when you save it as a file. It is all in one HTML-file.
For example:
http://jsfiddle.net/Ua8Cv/show/
for the site http://jsfiddle.net/Ua8Cv
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