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A positive lambda: '+[]{}' - What sorcery is this? [duplicate]
...o pass by value instead of reference. The better way would be with static_cast<T>(lvalue) to get a prvalue of type T from an lvalue. "customary to use a generic function called val()": This isn't clear, can you show an example/link of such a val() function?
– Andrew Tom...
How to set enum to null
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@equiman no need to cast since the type is specified on the left, you are basically duplicating the first part of my answer that is already accepted.
– Rodney S. Foley
Jul 8 '15 at 22:50
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Using isKindOfClass with Swift
...nted out in @Kevin's answer, the correct way would be to use optional type cast operator as?. You can read more about it on the section Optional Chaining sub section Downcasting.
Edit 2
As pointed on the other answer by user @KPM, using the is operator is the right way to do it.
...
How can I mask a UIImageView?
..."UIImageViewWithMask" (custom class name above).
On Attributes Inspector: Select mask image you
want to use.
Example
Notes
Your mask image should have a transparent background (PNG) for the non-black part.
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Type definition in object literal in TypeScript
... The DRY (Don't Repeat Yourself) option by @Rick Love with the cast operator seems mucho neater. Just commenting, not downvoting...
– spechter
Nov 17 '17 at 0:43
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How do I make the return type of a method generic?
...e]);
}
Option 2: When you don't want to use fancy methods of conversion - Cast the value to object and then to generic type.
public static T ConfigSetting<T>(string settingName)
{
return (T)(object)ConfigurationManager.AppSettings[settingName];
}
Note - This will throw an error if t...
Change default primary key in Eloquent
...d to make sure you set public $incrementing = false otherwise laravel will cast the field to an Integer, giving 0
class User extends Model {
protected $primaryKey = 'my_string_key';
public $incrementing = false;
}
...
How to convert IEnumerable to ObservableCollection?
...ble original)
{
return new ObservableCollection<object>(original.Cast<object>());
}
If you're working with generic IEnumerable<T> you can do it this way:
public ObservableCollection<T> Convert<T>(IEnumerable<T> original)
{
return new ObservableCollection...
Automatically expanding an R factor into a collection of 1/0 indicator variables for every factor le
... 0 1
# 3 bar 3 1 0
# 4 bar 4 1 0
# At this point, you can select out the columns that you want.
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How to Implement Custom Table View Section Headers and Footers with Storyboard
...that tapping the section header causes the first cell in the section to be selected.
As Paul Von points out, this is fixed by returning the cell's contentView instead of the whole cell.
However, as Hons points out, a long press on said section header will crash the app.
The solution is to remove...