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Overriding superclass property with different type in Swift
... do it this way...
class ViewController {
var view: UIView! { return _view }
private var _view: UIView!
}
class ScrollView : UIView {}
class ScrollViewController : ViewController {
override var view: ScrollView! { return super.view as ScrollView! }
}
class HomeView : ScrollView {}...
Generate JSON string from NSDictionary in iOS
...ke easier to read).
@interface NSDictionary (BVJSONString)
-(NSString*) bv_jsonStringWithPrettyPrint:(BOOL) prettyPrint;
@end
.
@implementation NSDictionary (BVJSONString)
-(NSString*) bv_jsonStringWithPrettyPrint:(BOOL) prettyPrint {
NSError *error;
NSData *jsonData = [NSJSONSerial...
How do you get the logical xor of two variables in Python?
...nt to bitwise xor when the domain is restricted to 0 and 1.
So the logical_xor function would be implemented like:
def logical_xor(str1, str2):
return bool(str1) ^ bool(str2)
Credit to Nick Coghlan on the Python-3000 mailing list.
...
Python: What OS am I running on?
...ion of Darwin that comes with Catalina 10.15.2: en.wikipedia.org/wiki/MacOS_Catalina#Release_history
– philshem
Aug 21 at 13:28
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Shell script while read line loop stops after the first line
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The problem is that do_work.sh runs ssh commands and by default ssh reads from stdin which is your input file. As a result, you only see the first line processed, because ssh consumes the rest of the file and your while loop terminates.
To preve...
Leaflet - How to find existing markers, and delete markers?
...
The layers are internally stored in map._layers.
– flup
Jan 26 '13 at 14:51
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Rspec doesn't see my model Class. uninitialized constant error
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Your spec_helper file is missing some important commands. Specifically, it's not including config/environment and initializing rspec-rails.
You can add the following lines to the start of your spec/spec_helper.rb file
ENV["RAILS_EN...
How do I look inside a Python object?
...
object.__dict__
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Google Maps: how to get country, state/province/region, city given a lat/long value?
...se
Response:
{
"status": "OK",
"results": [ {
"types": [ "street_address" ],
"formatted_address": "275-291 Bedford Ave, Brooklyn, NY 11211, USA",
"address_components": [ {
"long_name": "275-291",
"short_name": "275-291",
"types": [ "street_number" ]
}, {
...
SQL Server Escape an Underscore
...IKE keyword and the [ ] wildcard characters.
For your case:
... LIKE '%[_]d'
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