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What is the purpose of willSet and didSet in Swift?
...named stored property
Example 1 (read only property) - with warning:
var test : Int {
get {
return test
}
}
This will result in a warning because this results in a recursive function call (the getter calls itself).The warning in this case is "Attempting to modify 'test' within it...
What's the difference between RSpec and Cucumber? [closed]
...
RSpec and Cucumber are both testing frameworks. RSpec includes traditional Unit Testing (which means testing a class or part of the application in isolation from the rest of the application. So your model does what your model is supposed to do, the cont...
How do I check if a string is unicode or ascii?
...nicode string may consist of purely characters in the ASCII range, and a bytestring may contain ASCII, encoded Unicode, or even non-textual data.
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Why are elementwise additions much faster in separate loops than in a combined loop?
...llocations will appear at the same offset from a page-boundary.
Here's the test code:
int main(){
const int n = 100000;
#ifdef ALLOCATE_SEPERATE
double *a1 = (double*)malloc(n * sizeof(double));
double *b1 = (double*)malloc(n * sizeof(double));
double *c1 = (double*)malloc(n * sizeo...
What is a “feature flag”?
...cookie' to show uncompleted features to just the dev team. This way we can test partially completed work in production (oh yeh! is there better integration?) over multiple releases/deployments before we 'untoggle' (completed) it and it becomes visible to the public.
Here's a simple package that hel...
How to handle anchor hash linking in AngularJS
... you to any element with the id found in $location.hash()
app.controller('TestCtrl', function($scope, $location, $anchorScroll) {
$scope.scrollTo = function(id) {
$location.hash(id);
$anchorScroll();
}
});
<a ng-click="scrollTo('foo')">Foo</a>
<div id="foo">Her...
Check Whether a User Exists
...
this will return 1 if you have a username, let's say "test1" and want to create a new username called "test".
– Marin Nedea
May 22 '18 at 20:08
2
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PHP: Return all dates between two dates in an array [duplicate]
... inclusive array of the dates between the from and to dates.
// could test validity of dates here but I'm already doing
// that in the main script
$aryRange=array();
$iDateFrom=mktime(1,0,0,substr($strDateFrom,5,2), substr($strDateFrom,8,2),substr($strDateFrom,0,4));
$iDat...
What does %~d0 mean in a Windows batch file?
... %0 will be surrounded by quotes. For example, if you save this file as c:\test.bat:
@echo %0
@pause
Double-clicking it will open a new command prompt with output:
"C:\test.bat"
But if you first open a command prompt and call it directly from that command prompt, %0 will refer to whatever you'...
What is the difference between self::$bar and static::$bar in PHP?
...
{
protected static $bar = 'parent value';
public static function test()
{
var_dump('I am your father');
var_dump('self:: here means '.self::$bar);
var_dump('static:: here means '.static::$bar);
}
}
class Bar extends Foo
{
protected static $bar = 'chil...