大约有 40,000 项符合查询结果（耗时：0.0510秒） [XML]
Constructor function vs Factory functions
...function is used with the new keyword (which causes JavaScript to automatically create a new object, set this within the function to that object, and return the object):
var objFromConstructor = new ConstructorFunction();
A factory function is called like a "regular" function:
var objFromFactory...
setState vs replaceState in React.js
...ows out the current state, and replaces it with only what you provide. Usually setState is used unless you really need to remove keys for some reason; but setting them to false/null is usually a more explicit tactic.
While it's possible it could change; replaceState currently uses the object passe...
Is there a way to navigate to real implementation of method behind an interface?
In Visual Studio, when you right-click a method call, you go to the implementation of that method inside a class except if you access this method through an interface: in that case you go to the interface method not to the actual implementation.
...
What's the difference between ViewData and ViewBag?
...y typed view models (the same way as viewdata should be avoided).
So basically it replaces magic strings:
ViewData["Foo"]
with magic properties:
ViewBag.Foo
for which you have no compile time safety.
I continue to blame Microsoft for ever introducing this concept in MVC.
The name of the pro...
Haskell: Where vs. Let
...s of the function f (there are none) and things in outer scopes." - That really helps clarify it for me.
– user295190
Dec 6 '10 at 3:18
add a comment
|
...
How do I get Gridview to render THEAD?
...during postback and placed the code in the databound event which addressed all scenarios.
– James Westgate
Jun 10 '15 at 8:12
...
When to use IComparable Vs. IComparer
...figure out which of these interfaces I need to implement. They both essentially do the same thing. When would I use one over the other?
...
Why is early return slower than else?
...he key we are looking for (that's what
happens in the case of __builtins__ vs without_else).
The slot is full and has exactly the hash value we want, then Python
checks to see if the key and the object we are looking up are the
same object (which in this case they will be because short strings
that ...
versionCode vs versionName in Android Manifest
... The versionCode attribute holds the significant version number used internally.
Reading that it's pretty clear that versionName is just something that's shown to the user, versionCode is what matters. Just keep increasing it and everything should be good.
...
Can I find out the return value before returning while debugging in Visual Studio?
... in release builds anyway...
Update:
This functionality has been added to VS2013.
You can see the return values in the autos windows or use $ReturnValue in the watch/immediate window.
The value can only be seen directly after returning from the function, thus the easiest way to access it is by put...