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Search for executable files using find command
...be answered without involving external utilities.
Thus, the best -perm can do (by itself) is an approximation of -executable. Perhaps a closer approximation than -perm +111 is -perm -111, so as to find files that have the executable bit set for ALL security principals (user, group, other) - this str...
How to take a screenshot programmatically on iOS
...or:@selector(scale)]) {
UIGraphicsBeginImageContextWithOptions(self.window.bounds.size, NO, [UIScreen mainScreen].scale);
} else {
UIGraphicsBeginImageContext(self.window.bounds.size);
}
[self.window.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *image = UIGraphicsGetImageFr...
Show hide fragment in android
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Don't mess with the visibility flags of the container - FragmentTransaction.hide/show does that internally for you.
So the correct way to do this is:
FragmentManager fm = getFragmentManager();
fm.beginTransaction()
...
What is the !! (not not) operator in JavaScript?
I saw some code that seems to use an operator I don't recognize, in the form of two exclamation points, like so: !! . Can someone please tell me what this operator does?
...
Programmatically creating Markdown tables in R with KnitR
I am just starting to learn about KnitR and the use of Markdown in generating R documents and reports. This looks to be perfect for a lot of the day to day reporting that I have to do with my job. However, one thing that I'm not seeing is an easy way to print data frames and tables using Markdown fo...
How to find the last day of the month from date?
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t returns the number of days in the month of a given date (see the docs for date):
$a_date = "2009-11-23";
echo date("Y-m-t", strtotime($a_date));
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Using CSS for a fade-in effect on page load
...
}
#test p.load {
opacity: 1;
}
Plain JavaScript (not in the demo)
document.getElementById("test").children[0].className += " load";
Demo
http://jsfiddle.net/SO_AMK/a9dnW/
Browser Support
All modern browsers and Internet Explorer 10 (and later): http://caniuse.com/#feat=css-transiti...
IIS7 Overrides customErrors when setting Response.StatusCode?
... existingResponse property is Auto:
Auto tells custom error module to do the right thing. Actual error text seen by clients will be affected depending on value of fTrySkipCustomErrors returned in IHttpResponse::GetStatus call. When fTrySkipCustomErrors is set to true, custom error module will l...
What is “overhead”?
...earing the word "overhead" a lot when it comes to programs and sorts. What does this mean exactly?
12 Answers
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What's the best way to use R scripts on the command line (terminal)?
It's very convenient to have R scripts for doing simple plots from the command line. However, running R from bash scripts is not convenient at all. The ideal might be something like
...