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Warning message: In `…` : invalid factor level, NA generated
... default because that is the what most users want the vast majority of the time).
– David
Aug 2 '15 at 17:32
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Make a negative number positive
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Oh, dilemma time - there are so many equally good answers, that I might as well delete mine. But then I'd lose 40 points, and I'll never catch Jon Skeet if I do that.
– Paul Tomblin
Jan 29 '09 at 2...
Array Length in Java
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In Java, your "actual" and "logical" size are the same. The run-time fills all array slots with default values upon allocation. So, your a contains 10.
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Javascript object Vs JSON
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Is the key/property name valid both with/without quotes ?
The only time you need to enclose a key in quotes when using Object Literal notation is where the key contains a special character (if, :, - etc). It is worth noting that a key in JSON must be enclosed in double quotes.
If I conver...
Java equivalent to Explode and Implode(PHP) [closed]
...platforms (Solaris, Windows, Linux, Macintosh, etc.) and can change at any time without notice with SDK versions
– Arnaud Denoyelle
May 27 '13 at 13:00
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How to check if NSString begins with a certain character
...ll Free Bridging". The performance of CFStringHasPrefix() seems to be 2-3 times better (at least when using my data set). So if you are using it in a performance sensitive area, you might want to try CFStringHasPrefix() instead.
– John Bowers
Feb 6 '14 at 21:...
Android - How to get application name? (Not package name)
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while reading App Name from string.xml, sometimes, am getting junk characters. I dont know why ..Ex: स्कैनर
– harikrishnan
Oct 17 '16 at 9:41
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Is there a Google Voice API? [closed]
... Duh, great idea, now for someone to do so. I may try when I have time, not anytime soon. But a JS port may be restricted by XmlHttpRequest limitations within browser. So it will still work best in other unrestricted JS environments like node.js, Windows Scripting Host, Rhino engine, and br...
How to deselect a selected UITableView cell?
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Was calling the wrong method this whole time, arghh!! Thank you!
– Damir Kotoric
Sep 8 '14 at 12:46
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Why do I need an IoC container as opposed to straightforward DI code? [closed]
...Name { get; set; }
public string LastName { get; set; }
public DateTime CustomerSince { get; set; }
public string Status { get; set; }
}
..and end up with this:
public class UglyCustomer : INotifyPropertyChanged
{
private string _firstName;
public string FirstName
{
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