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How to convert image to byte array
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edited Mar 19 '18 at 5:28
answered Sep 27 '10 at 5:20
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What is Scala's yield?
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It is used in sequence comprehensions (like Python's list-comprehensions and generators, where you may use yield too).
It is applied in combination with for and writes a new element into the resulting sequence.
Simple examp...
Java Desktop application: SWT vs. Swing [closed]
...esktop application. The idea is to build a tool that automates a very repetitive task in a web application where no API is available.
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How to check if two arrays are equal with JavaScript? [duplicate]
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edited Jun 18 at 21:49
C. Tewalt
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Eclipse: Enable autocomplete / content assist
How can I enable autocomplete in Eclipse? I can't find it!
8 Answers
8
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How to convert nanoseconds to seconds using the TimeUnit enum?
...double seconds = (double)elapsedTime / 1_000_000_000.0;
If you use TimeUnit to convert, you'll get your result as a long, so you'll lose decimal precision but maintain whole number precision.
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Zooming MKMapView to fit annotation pins?
...to show the whole world, what is the best way to zoom the map so the pins fit the view?
25 Answers
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How to wait for a BackgroundWorker to cancel?
...esetEvent _resetEvent = new AutoResetEvent(false);
public Form1()
{
InitializeComponent();
worker.DoWork += worker_DoWork;
}
public void Cancel()
{
worker.CancelAsync();
_resetEvent.WaitOne(); // will block until _resetEvent.Set() call made
}
void worker_DoWork(object sender, DoW...
In Django, how does one filter a QuerySet with dynamic field lookups?
...d to solve this problem:
kwargs = {
'{0}__{1}'.format('name', 'startswith'): 'A',
'{0}__{1}'.format('name', 'endswith'): 'Z'
}
Person.objects.filter(**kwargs)
This is a very common and useful Python idiom.
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How to ALTER multiple columns at once in SQL Server
...You will need to do this one by one.
You could:
Create a Temporary Table with your modified columns in
Copy the data across
Drop your original table (Double check before!)
Rename your Temporary Table to your original name
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