大约有 43,000 项符合查询结果（耗时：0.0670秒） [XML]
C# equivalent of the IsNull() function in SQL Server
...
you can cast dbnull to an object ((object)oldValue ?? (object)DBNull.Value))
– Jeremy Gray
Mar 2 '11 at 19:17
...
Difference Between ViewResult() and ActionResult()
...f you're planning to write unit tests. No more testing return types and/or casting the result.
share
|
improve this answer
|
follow
|
...
Get size of an Iterable in Java
...
You can cast your iterable to a list then use .size() on it.
Lists.newArrayList(iterable).size();
For the sake of clarity, the above method will require the following import:
import com.google.common.collect.Lists;
...
Convert decimal to binary in python [duplicate]
...nasterling's answer. However, if you want a non-binary string that you can cast into an int, then you can use the canonical algorithm:
def decToBin(n):
if n==0: return ''
else:
return decToBin(n/2) + str(n%2)
...
Javascript: Setting location.href versus location
...ndow.location.replace('/step1', '/step2');
The following codes work:
// cast to string
nextUrl = (window.location+'').replace('/step1', '/step2');
// href property
nextUrl = window.location.href.replace('/step1', '/step2');
...
Pure JavaScript: a function like jQuery's isNumeric() [duplicate]
...
And I think you can also drop the cast to Number() and rely on the double equals to do a bit of conversion: let isNumeric = (val) => parseFloat(val) == val;
– Mark Birbeck
Aug 31 '16 at 11:40
...
Defining Z order of views of RelativeLayout in Android
...ieve.
I you set an elevation of an element in the layout it will start to cast a shadow. If you don't want this effect you can remove the shadow with code like so:
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
myView.setOutlineProvider(null);
}
I haven't found any way to re...
Remove last character from string. Swift language
...
In Swift 2.0 for have to properly cast the result expression = String(expression.characters.dropLast()) if you want it back as a String
– cromanelli
Sep 18 '15 at 18:57
...
How can I combine multiple rows into a comma-delimited list in Oracle? [duplicate]
...it to a clob using RTRIM,XMLAGG,XMLELEMENT, and GETCLOBVAL(), which I then cast back to VARCHAR2. However, the run time for the query turns into hours rather than 15 minutes. Do you have any recommendations of other approaches? Also, I saw a suggestion for creating a custom function instead.
...
Objective-C and Swift URL encoding
...
This can work in Objective C ARC.Use CFBridgingRelease to cast a Core Foundation-style object as an Objective-C object and transfer ownership of the object to ARC .See Function CFBridgingRelease here.
+ (NSString *)encodeUrlString:(NSString *)string {
return CFBridgingRelease(CFURL...