大约有 2,253 项符合查询结果（耗时：0.0199秒） [XML]
Checking if a list is empty with LINQ
... most one element, so I fail to see the point here. On the other hand, the casts and the if-statements you are adding are a fixed cost you have to pay on every call then.
– codymanix
Nov 28 '18 at 10:31
...
getApplicationContext(), getBaseContext(), getApplication(), getParent()
...istered in the Manifest, you should never call getApplicationContext() and cast it to your application, because it may not be the application instance (which you obviously experienced with the test framework).
getParent() returns object of the activity if the current view is a child..In other words...
Haskell: Converting Int to String
...nswer you're looking for? Browse other questions tagged string haskell int casting or ask your own question.
Select between two dates with Django
... Filtering with dates won’t include items on the last day.
You need to casts the value as date:
...filter(created_at__date__range=(start_date, end_date))
share
|
improve this answer
|...
Add and Remove Views in Android Dynamically?
...ViewParents in general can't remove views, but ViewGroups can. You need to cast your parent to a ViewGroup (if it is a ViewGroup) to accomplish what you want.
For example:
View namebar = View.findViewById(R.id.namebar);
((ViewGroup) namebar.getParent()).removeView(namebar);
Note that all Layout...
How to check if Location Services are enabled?
...
Excellent ! But even better, get rid of casting and directly pass LocationManager.class in getSystemService method because call requires API 23 ;-)
– Mackovich
Jun 6 '19 at 8:52
...
Check for null in foreach loop
...r and ForEach() which works faster than standard foreach loop.
You have to cast the collection to List though.
listOfItems?.ForEach(item => // ... );
share
|
improve this answer
|
...
How to sort by two fields in Java?
... You can also add a type parameter to Comparator to avoid having to cast the inputs.
– biziclop
Jan 26 '11 at 14:36
...
Is there a way to change the environment variables of another process in Unix?
...ystems gdb may give the following error: 'putenv' has unknown return type; cast the call to its declared return type; in those cases you should change putenv call to this: call (int) putenv ("env_var_name=env_var_value")
– Emir Uner
Feb 20 '19 at 9:33
...
How can I force division to be floating point? Division keeps rounding down to 0?
...
You can cast to float by doing c = a / float(b). If the numerator or denominator is a float, then the result will be also.
A caveat: as commenters have pointed out, this won't work if b might be something other than an integer or ...