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Checking if an instance's class implements an interface?
...). Just as with Reflection, this allows you to specify the class name as a string and doesn't require an instance of the class:
interface IInterface
{
}
class TheClass implements IInterface
{
}
$interfaces = class_implements('TheClass');
if (isset($interfaces['IInterface'])) {
echo "Yes!";
}...
How should I call 3 functions in order to execute them one after the other?
...setTimeout here, but:
in this case I've added the code to execute as a string. this is the simplest way to pass a var into your setTimeout-ed function, but purists will complain.
you can also pass a function name without quotes, but no variable can be passed.
your code does not wait for setTime...
“Variable” variables in Javascript?
...
To reference a variable in javascript with only a string, you can use
window['your_variable_name']
You can set and reference variables, and objects in variables too.
share
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...
NoClassDefFoundError: android.support.v7.internal.view.menu.MenuBuilder
...ns and change the app flow:
public static boolean isSamsung_4_2_2() {
String deviceMan = Build.MANUFACTURER;
String deviceRel = Build.VERSION.RELEASE;
return "samsung".equalsIgnoreCase(deviceMan) && deviceRel.startsWith("4.2.2");
}
Then in the activity's onCreate method:
if (...
How is the “greater than” or “>” character used in CSS?
I have seen this character a number of times in CSS files but I have no idea how its used. Can anyone explain it to me and show how they are useful in making a page style easier?
...
ActiveModel::ForbiddenAttributesError when creating new user
...ile_phone, :work_phone]
end
The form will pass say a radio selector as a string param. That's what happened in my case. The simple fix is to change enum to strings instead of symbols
enum preferred_phone: %w[home_phone mobile_phone work_phone]
# or more verbose
enum preferred_phone: ['home_phone'...
iPhone - Grand Central Dispatch main thread
...rocessing has finished e.g.
- (void)doCalculation
{
//you can use any string instead "com.mycompany.myqueue"
dispatch_queue_t backgroundQueue = dispatch_queue_create("com.mycompany.myqueue", 0);
dispatch_async(backgroundQueue, ^{
int result = <some really long calculation th...
When vectors are allocated, do they use memory on the heap or the stack?
... // Can't be on stack - how would the stack "expand"
// to make the extra space required between main and foo?
vec.push_back(Type());
}
int main() {
vector<Type> bar;
foo(bar);
}
Likewise:
vector<Type> *vect = new vector<Type>; //allocates vect on hea...
Why does C# forbid generic attribute types?
... like [PropertyReference(x => x.SomeProperty)]. Instead, you need magic strings and typeof(), which I think kind of sucks.
– Asbjørn Ulsberg
Jun 25 '11 at 12:38
13
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How to intercept click on link in UITextView?
...u also want UIAlertController to pop up
}
}
#3. Using NSAttributedString and NSAttributedString.Key.link
As an alternative, you can use NSAttributedString and set a URL for its NSAttributedString.Key.link attribute.The sample code below shows a possible implementation of it. With this code...