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Swapping two variable value without using third variable
...
Using the xor swap algorithm
void xorSwap (int* x, int* y) {
if (x != y) { //ensure that memory locations are different
*x ^= *y;
*y ^= *x;
*x ^= *y;
}
}
Why the test?
The test is to ensure that x and y hav...
What is a “surrogate pair” in Java?
... in Java-12, should work in all Java versions above 5.
As mentioned here: https://stackoverflow.com/a/47505451/2987755,
whichever character (whose Unicode is above U+FFFF) is represented as a surrogate pair, which Java stores as a pair of char values, i.e. the single Unicode character is represente...
Apply CSS style attribute dynamically in Angular JS
... ];
});
.pending-delete {
background-color: pink
}
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="myApp" ng-controller='MyCtrl' ng-style="{color: myColor}">
<input type="text" ng-model="myColor" placeholde...
How can Perl's print add a newline by default?
...
Here's what I found at https://perldoc.perl.org/perlvar.html:
$\
The output record separator for the print operator. If defined, this value is
printed after the last of print's arguments. Default is undef.
You cannot call output_recor...
Is there an equivalent of lsusb for OS X
...put's much more detailed than the profiler, but it's a bit dense.
Source: https://lists.macosforge.org/pipermail/macports-users/2008-July/011115.html
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...
Case in Select Statement
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How do you clear a slice in Go?
...nd wanted to share my results.
To practice, I did a little go playground:
https://play.golang.org/p/9i4gPx3lnY
which evals to this:
package main
import "fmt"
type Blah struct {
babyKitten int
kittenSays *string
}
func main() {
meow := "meow"
Blahs := []Blah{}
fmt.Printf("Bl...
What does the comma operator , do?
What does the , operator do in C?
8 Answers
8
...
Change UICollectionViewCell size on different device orientations
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How do I set up DNS for an apex domain (no www) pointing to a Heroku app?
...as the canonical URL. How you decide to do that depends on if you're using HTTPS or not. And if you're not, you probably should be as Heroku now handles SSL certificates for you automatically and for free for all applications running on paid dynos.
If you're not using HTTPS, you can just set up a 3...