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structure vs class in swift language
...mple here code to understand well.
struct SomeStruct {
var a : Int;
init(_ a : Int) {
self.a = a
}
}
class SomeClass {
var a: Int;
init(_ a: Int) {
self.a = a
}
}
var x = 11
var someStruct1 = SomeStruct(x)
var someClass1 = SomeClass(x)
var someStruct2 = someStruct1
var someClass2 = so...
How can I merge properties of two JavaScript objects dynamically?
...bj2
* @returns obj3 a new object based on obj1 and obj2
*/
function merge_options(obj1,obj2){
var obj3 = {};
for (var attrname in obj1) { obj3[attrname] = obj1[attrname]; }
for (var attrname in obj2) { obj3[attrname] = obj2[attrname]; }
return obj3;
}
...
Table Header Views in StoryBoards
...eak var audioView: UIView!
Then in tableview code I did:
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
return audioView
}
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 142
}
It work...
how to check redis instance version?
...
redis-cli INFO SERVER | grep redis_version
– Andriy Tolstoy
Dec 23 '19 at 11:36
add a comment
|
...
How do you implement a class in C? [closed]
... float (*computeArea)(const ShapeClass *shape);
} ShapeClass;
float shape_computeArea(const ShapeClass *shape)
{
return shape->computeArea(shape);
}
This would let you implement a class, by "inheriting" the base class, and implementing a suitable function:
typedef struct {
ShapeClass sha...
How to extract img src, title and alt from html using php? [duplicate]
...you can't use an XML parser. E.G. with this web page source code :
/* preg_match_all match the regexp in all the $html string and output everything as
an array in $result. "i" option is used to make it case insensitive */
preg_match_all('/<img[^>]+>/i',$html, $result);
print_r($result)...
How to create a date and time picker in Android? [closed]
...
Put both DatePicker and TimePicker in a layout XML.
date_time_picker.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
a...
Send an Array with an HTTP Get
... single value.
foo[]=value1&foo[]=value2&foo[]=value3
$foo = $_GET["foo"]; // [value1, value2, value3]
echo is_array($foo); // true
In case you still use foo=value1&foo=value2&foo=value3, then it'll return only the first value.
$foo = $_GET["foo"]; // value1
echo is_array($fo...
(-2147483648> 0) returns true in C++?
...ndefined anyway.
As a side note, this is the reason why constants like INT_MIN are typically defined as
#define INT_MIN (-2147483647 - 1)
instead of the seemingly more straightforward
#define INT_MIN -2147483648
The latter would not work as intended.
...
SQLite - UPSERT *not* INSERT or REPLACE
...re the old value and the new value for any field.
– G__
Apr 1 '11 at 16:56
24
If the Employee is ...