大约有 45,000 项符合查询结果（耗时：0.0323秒） [XML]
private[this] vs private
...code with private instead of private[this] it will fail with the following error message:
error: covariant type T occurs in contravariant position in type Option[T] of value value_=
class Holder[+T] (initialValue: Option[T]) {
This error occurs because value is a mutable variable on the ...
Design by contract using assertions or exceptions? [closed]
...in a release build. But you don't want the release build crashing whenever errors occur either, do you?
So use exceptions and use them well. Use a good, solid exception hierarchy and ensure that you catch and you can put a hook on exception throwing in your debugger to catch it, and in release mode...
What is the difference between log4net and ELMAH?
...
ELMAH serves a purpose of tracking errors and exceptions for your web applications and allows you to easily log or view those exceptions via many different mechanisms (SQL, RSS, Twitter, files, email, etc.). If you have no built-in exception handling ELMAH wil...
405 method not allowed Web API
This error is very common, and I tried all of the solutions and non of them worked. I have disabled WebDAV publishing in control panel and added this to my web config file:
...
When should you use constexpr capability in C++11?
...t its not obliged to. constexpr obliges the compiler and will spit out an error if it can't.
– Goz
Jan 20 '11 at 14:38
...
Git fatal: Reference has invalid format: 'refs/heads/master
... to sync a git repository, but now when I try and push I am getting an error:
8 Answers
...
What is NODE_ENV and how to use it in Express?
...ly run in a production environment - it's much safer if your app throws an error if this important value is not set (or if preferred, defaults to production logic as above).
Be aware that if you haven't explicitly set NODE_ENV for your environment, it will be undefined if you access it from process....
New self vs. new static
...ic $name = static::class;
}
$Foo = new Foo;
echo $Foo->name; // Fatal error
Using self::
class Foo {
public $name = self::class;
}
$Foo = new Foo;
echo $Foo->name; // Foo
Please note that the Fatal error comment in the code i made doesn't indicate where the error happened, the...
Swift to Objective-C header not created in Xcode 6
... it had been deleted (e.g. by cleaning the build folder) then you will see error messages everywhere that the file is imported, even for .m files, adding to the confusion.
– rene
Dec 29 '15 at 20:29
...
How to fix Error: laravel.log could not be opened?
...rying to create my very first project. for some reason I keep getting this error (I haven't even started coding yet)
24 Ans...