大约有 9,700 项符合查询结果（耗时：0.0357秒） [XML]
Java: Class.this
...Am I right? (This is how the minified code is in the OSX Kindle Previewer app's .jar files, I'm just trying to understand what I'm looking at.)
– Matt Mc
Apr 29 '15 at 5:48
...
PHP: How to generate a random, unique, alphanumeric string for use in a secret link?
...uations where the quality of your randomness can affect the security of an application. In particular, rand() and uniqid() are not cryptographically secure random number generators. See Scott's answer for a secure alternative.
If you do not need it to be absolutely unique over time:
md5(uniqid(ra...
Which is generally best to use — StringComparison.OrdinalIgnoreCase or StringComparison.InvariantCul
...our string comparison to behave the same way, no matter what computer your application is installed on.
To achieve this we have 3 options:
Set the culture explicitly and perform a case insensitive compare using unicode equivalence rules.
Set the culture to the Invariant Culture and perform case ins...
Why was “Avoid Enums Where You Only Need Ints” removed from Android's performance tips?
...
Adding an enum class does of course mean that your app contains an extra class, so it's not free, but we have to assume that a developer is only adding enums where they're useful. The only really bad use I've seen of enums was in some harmony code where they really wanted int...
What's the fastest way to loop through an array in JavaScript?
...our code
i++
}
I would say, this is definitely a case where I applaud JavaScript engine developers. A runtime should be optimized for clarity, not cleverness.
share
|
improve this answe...
When is a C++ destructor called?
...te an item in the (previously) unused part of its memory space.
Now, what happens when/if you erase an item from the vector? It can't just use delete -- that would release its entire block of memory; it needs to destroy one object in that memory without destroying any others, or releasing any of the...
Detect iPad Mini in HTML5
Apple's iPad Mini is a smaller clone of the iPad 2 in more ways than we'd want. In JavaScript, the window.navigator object exposes the same values for the Mini and iPad 2. My tests so far to detect the difference have not lead to success.
...
How to delete an old/unused Data Model Version in Xcode
... I haven't changed the default version name, so the versions are named "MY_APP 37.xcdatamodel". I wanted to delete 38. On import, it was pulled in lexical order, meaning "MY_APP 10.xcdatamodel" was first, and selected as the default. Not ideal in my case.
– Mike
...
What's the UIScrollView contentInset property for?
...on this, I can move it its own question, but based on this, what actually happens if you set each contentInset value to 0 other than the contentHeight for example? Does that force the whole scrollview to be the height you set it to?
– jakev
Apr 14 '13 at 17:33
...
How do you make a web application in Clojure? [closed]
...ause I worked on Java projects, but not Java-the-world. I never made a web app from scratch in Java. If I have to do it with Python, Ruby, I know where to go (Django or Rails), but if I want to make a web application in Clojure, not because I'm forced to live in a Java world, but because I like the ...