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What is the C# equivalent of NaN or IsNumeric?
...p; Char.IsDigit(c);
}
return value;
}
or if you want to be a little more fancy
public Boolean IsNumber(String value) {
return value.All(Char.IsDigit);
}
update 2 ( from @stackonfire to deal with null or empty strings)
public Boolean IsNumber(String s) {
Boolean value = true;
i...
AsyncTaskLoader vs AsyncTask
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You can have a look at the compatibility library's source code to get more info. What a FragmentActivity does is:
keep a list of LoaderManager's
make sure they don't get destroyed when you flip your phone (or another configuration change occurs) by saving instances using onRetainNonConfigurat...
Is [UIScreen mainScreen].bounds.size becoming orientation-dependent in iOS8?
...endent in iOS8, not a bug. You could review session 214 from WWDC 2014 for more info: "View Controller Advancements in iOS 8"
Quote from the presentation:
UIScreen is now interface oriented:
[UIScreen bounds] now interface-oriented
[UIScreen applicationFrame] now interface-oriented
Status bar fr...
Is there a way to make a PowerShell script work by double clicking a .ps1 file?
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Why create “Implicitly Unwrapped Optionals”, since that implies you know there's a value?
...ight into it. Even then, it is often good to unwrap the optional and use a more descriptive assert if it is nil.
When Not To Use An Implicitly Unwrapped Optional
1. Lazily Calculated Member Variables
Sometimes you have a member variable that should never be nil, but it cannot be set to the correc...
How to concatenate two MP4 files using FFmpeg?
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Helpful answer. And it made even more sense to me when I read this variation: superuser.com/a/607384/74576
– Ryan
Feb 22 '16 at 18:54
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Detecting request type in PHP (GET, POST, PUT or DELETE)
...ETHOD'] === 'POST') {
// The request is using the POST method
}
For more details please see the documentation for the $_SERVER variable.
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How to check if an object is an array?
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Here is a more complete list of browsers that support Array.isArray
– lightswitch05
Dec 17 '14 at 18:51
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What is the difference between the 'COPY' and 'ADD' commands in a Dockerfile?
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You should check the ADD and COPY documentation for a more detailed description of their behaviors, but in a nutshell, the major difference is that ADD can do more than COPY:
ADD allows <src> to be a URL
Referring to comments bellow, the ADD documentation states that:
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