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How can I apply a function to every row/column of a matrix in MATLAB?
...viously, this functionality was available via the bsxfun function.
It is now recommended that you replace most uses of bsxfun with direct
calls to the functions and operators that support implicit expansion.
Compared to using bsxfun, implicit expansion offers faster speed,
better memory usag...
How can I change the copyright template in Xcode 4?
Does anyone know how to change copyright in the templates for Xcode? That is, at the top of a new file it writes:
5 Answers...
CGContextDrawImage draws image upside down when passed UIImage.CGImage
Does anyone know why CGContextDrawImage would be drawing my image upside down? I am loading an image in from my application:
...
How can I get the Typescript compiler to output the compiled js to a different directory?
I'm fairly new to TypeScript, and right now I have .ts files in several places throughought my project structure:
8 Answers...
How to split a long regular expression into multiple lines in JavaScript?
... function(reg){ return reg.source; }
).join(''), options);
}
And now let's rock
var r = multilineRegExp([
/^foo/, // we can add comments too
/(.*)/,
/\bar$/
]);
Since it has a cost, try to build the real regex just once and then use that.
...
Calculate age given the birth date in the format YYYYMMDD
...on _calculateAge(birthday) { // birthday is a date
var ageDifMs = Date.now() - birthday.getTime();
var ageDate = new Date(ageDifMs); // miliseconds from epoch
return Math.abs(ageDate.getUTCFullYear() - 1970);
}
Disclaimer: This also has precision issues, so this cannot be completely tr...
“Variable” variables in Javascript?
I know it's possible in PHP to have "variable" variables. For example
7 Answers
7
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Identify if a string is a number
...
Though, I would use double.TryParse, since we want to know if it represents a number at all.
– John Gietzen
May 21 '09 at 18:31
6
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Make a UIButton programmatically in Swift
...
Inversely, anyone reading this may also want to know that if your button action references a function that takes no parameter, the colon is not needed and may even cause an error if not removed.
– Dave G
Sep 2 '15 at 3:29
...
Using R to download zipped data file, extract, and import data
... See help(gzfile) -- I was thinking that the gzip protocol may now uncompress (stone old) .z files too now that the patent has long expired. It may not. Who uses .z anyways? The 1980s called, they want their compression back ;-)
– Dirk Eddelbuettel
...