大约有 2,600 项符合查询结果(耗时:0.0223秒) [XML]
C# Lambda expressions: Why should I use them?
...
In the first example, why not cast sender and get the value?
– Andrew
Sep 16 '17 at 21:27
...
Best way to trim strings after data entry. Should I create a custom model binder?
...r.PropertyType == typeof(string) && !propertyDescriptor.Attributes.Cast<object>().Any(a => a.GetType() == typeof(NoTrimAttribute)))
and you can mark properties to be excluded from trimming with [NoTrim] attribute.
...
What is the difference between Collections.emptyList() and Collections.EMPTY_LIST
...t is probably always preferable. This way, you don't need to unnecessarily cast around within your code.
Collections.emptyList() intrinsically does the cast for you.
@SuppressWarnings("unchecked")
public static final <T> List<T> emptyList() {
return (List<T>) EMPTY_LIST;
}
...
How to remove the querystring and get only the url?
... strrpos() in 'www.mydomain.com/myurl.html' will return 0 (FALSE casted to boolean to be more correct) so your substr will be empty. Use one: substr() OR parse_url() because using both makes no sense ;)
– veritas
Aug 7 '11 at 0:21
...
How to supply value to an annotation from a Constant java
...nly the following:
Literals of primitive type and literals of type String
Casts to primitive types and casts to type String
[...] operators [...]
Parenthesized expressions whose contained expression is a constant expression.
Simple names that refer to constant variables.
Qualified names of the form...
Convert from List into IEnumerable format
...plements IEnumerable<T>. It means that you do not have to convert or cast anything.
share
|
improve this answer
|
follow
|
...
Hidden Features of JavaScript? [closed]
...amic typing may continue to use == for situations where we know we want to cast, as in 0 == '' or 0 == '0'.
– thomasrutter
Apr 1 '09 at 5:15
20
...
What's the difference between dynamic (C# 4) and var?
...can infer types that might not be desired because of subtypes and implicit casts. That is, var may have resolved a type statically different than expected when implicit casts occur (most notably to a more general type, but it's not limited to this). A trivial example is object x = "" vs. var x = "" ...
In Objective-C, what is the equivalent of Java's “instanceof” keyword?
I would like to check whether an object (e.g. someObject ) is assignable (cast-able) to a variable of another type (e.g. SpecifiedType ). In Java, I can write:
...
How are booleans formatted in Strings in Python?
...to actually format the string (e.g. add white space), you encounter Python casting the boolean into the underlying C value (i.e. an int), e.g.
>>> "{:<8} {}".format(True, False)
'1 False'
To get around this you can cast True as a string, e.g.
>>> "{:<8} {}".format...