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Declare a block method parameter without using a typedef
...ssue benefits from multiple):
@implementation CallbackAsyncClass {
void (^_loginCallback) (NSDictionary *response);
}
// …
- (void)loginWithCallback:(void (^) (NSDictionary *response))handler {
// Do something async / call URL
_loginCallback = Block_copy(handler);
// response will c...
Powershell equivalent of bash ampersand (&) for forking/running background processes
...file.txt is in the current directory.
The output is not displayed automatically. You need to run Receive-Job with the ID of the job as parameter.
NOTE: Regarding your initial example, "bg sleep 30" would not work because sleep is a Powershell commandlet. Start-Process only works when you actually ...
converting drawable resource image into bitmap
....logo);
Bitmap myLogo = ((BitmapDrawable) myDrawable).getBitmap();
Since API 22 getResources().getDrawable() is deprecated, so we can use following solution.
Drawable vectorDrawable = VectorDrawableCompat.create(getResources(), R.drawable.logo, getContext().getTheme());
Bitmap myLogo = ((BitmapD...
Pros and Cons of Interface constants [closed]
...mple of a good enough and a bad use:
Bad:
interface User {
const TYPE_ADMINISTRATOR = 1;
const TYPE_USER = 2;
const TYPE_GUEST = 3;
}
Good Enough:
interface HTTPRequest_1_1 {
const TYPE_CONNECT = 'connect';
const TYPE_DELETE = 'delete';
const TYPE_GET ...
PHP array delete by value (not key)
...
Well, deleting an element from array is basically just set difference with one element.
array_diff( [312, 401, 15, 401, 3], [401] ) // removing 401 returns [312, 15, 3]
It generalizes nicely, you can remove as many elements as you like at the same time, if you want.
...
Ruby custom error classes: inheritance of the message attribute
...
Given what the ruby core documentation of Exception, from which all other errors inherit, states about #message
Returns the result of invoking exception.to_s. Normally this returns
the exception’s message or name. By supplying a to_str method,
exceptions are agreeing to be used ...
python design patterns [closed]
...for their existence.
It's nothing more than
class Null(object):
def __init__(self, *args, **kwargs):
"Ignore parameters."
return None
def __call__(self, *args, **kwargs):
"Ignore method calls."
return self
def __getattr__(self, mname):
"Ignore...
How do I set bold and italic on UILabel of iPhone/iPad?
...t {
return with([.traitBold, .traitItalic])
}
func with(_ traits: UIFontDescriptor.SymbolicTraits...) -> UIFont {
guard let descriptor = self.fontDescriptor.withSymbolicTraits(UIFontDescriptor.SymbolicTraits(traits).union(self.fontDescriptor.symbolicTraits)) else {
...
what's the meaning of '=?' in angularJS directive isolate scope declaration?
...y linked in the answer, but here is a more direct link: docs.angularjs.org/api/ng/service/…
– Jason Axelson
Jul 25 '15 at 23:44
3
...
Custom error pages on asp.net MVC3
...t's of type IController so there's absolutely nothing preventing you from calling this method. And by the way Execute was protected in the Controller class as well in MVC 3, so there's no change in this regard.
– Darin Dimitrov
Oct 7 '13 at 10:29
...