大约有 30,000 项符合查询结果（耗时：0.0477秒） [XML]
Do you use NULL or 0 (zero) for pointers in C++?
...ided. That's less common these days.
If you have to name the null pointer, call it nullptr; that's what it's called in C++11. Then, nullptr will be a keyword.
That said, don't sweat the small stuff.
share
|
...
Is it possible to await an event instead of another async method?
...r the statement to run as a continuation on the Task or awaitable that you call await on. More often than not, it is some sort of asynchronous operation, which could be IO completion, or something that is on another thread.
– casperOne
Oct 12 '12 at 13:26
...
What's the difference between a Future and a Promise?
...
According to this discussion, Promise has finally been called CompletableFuture for inclusion in Java 8, and its javadoc explains:
A Future that may be explicitly completed (setting its value and status), and may be used as a CompletionStage, supporting dependent functions an...
Efficient SQL test query or validation query that will work across all (or most) databases
... for idleness. For example, the JDBC pooling library c3p0 has a property called preferredTestQuery , which gets executed on the connection at configured intervals. Similarly, Apache Commons DBCP has validationQuery .
...
IOS: create a UIImage or UIImageView with rounded corners
...iew with rounded corners? Because I want take an UIImage and show it inside an UIImageView , but I don't know how to do it.
...
What is the difference between string primitives and String objects in JavaScript?
...erms of functionality. That aside, the behaviour you are trying to name is called auto-boxing. So what actually happens is that a primitive is converted to its wrapper type when a method of the wrapper type is invoked. Put simple:
var s = 'test';
Is a primitive data type. It has no methods, it is...
How to access maven.build.timestamp for resource filtering
...it to something newer, fixed it for me, 3.x ex:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>3.1.0</version>
</plugin>
<properties><timestamp>... workaround is no lon...
Mixin vs inheritance
...
A mixin is typically used with multiple inheritance. So, in that sense, there's "no difference".
The detail is that a mixin is rarely useful as a standalone object.
For example, say you have a mixin named "ColorAndDimension", which adds a c...
Date only from TextBoxFor()
...n line with this solution, but also have it launch the datepicker like it did with Html.TextboxFor()
– Aaron
Feb 17 '11 at 0:06
50
...
Change a Django form field to a hidden field
...alue.
also you may prefer to use in the view:
form.fields['field_name'].widget = forms.HiddenInput()
but I'm not sure it will protect save method on post.
Hope it helps.
share
|
improve this an...