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Is there a way to pass optional parameters to a function?
...onal parameters" of the sort you want.
For instance, here's a function opt_fun which takes two positional parameters x1 and x2, and looks for another keyword parameter named "optional".
>>> def opt_fun(x1, x2, *positional_parameters, **keyword_parameters):
... if ('optional' in keywo...
Passing parameters in rails redirect_to
How do we pass parameters in redirect_to in rails?
I know we can pass id using this:
9 Answers
...
Use of #pragma in C
... == 7
Here's how you'd do the same thing in GCC:
struct PackedStructure __attribute__((__packed__))
{
char a;
int b;
short c;
};
// sizeof(PackedStructure == 7)
The GCC code is more portable, because if you want to compile that with a non-GCC compiler, all you have to do is
#define __att...
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 {}...
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" ]
}, {
...
List of lists changes reflected across sublists unexpectedly
...at you create a new list at each position. One way to do it is
[[1]*4 for _ in range(3)]
which will reevaluate [1]*4 each time instead of evaluating it once and making 3 references to 1 list.
You might wonder why * can't make independent objects the way the list comprehension does. That's beca...
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...
SQL Server Escape an Underscore
...IKE keyword and the [ ] wildcard characters.
For your case:
... LIKE '%[_]d'
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Leaflet - How to find existing markers, and delete markers?
...
The layers are internally stored in map._layers.
– flup
Jan 26 '13 at 14:51
11
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What's “requestCode” used for on PendingIntent?
... screen, I dont know whether is this the correct way and for me error was happening only when multiple FCMs were there in tray
– JSONParser
Dec 15 '18 at 9:06
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