大约有 45,000 项符合查询结果（耗时：0.0746秒） [XML]
Check whether a variable is a string in Ruby
...
Without knowing the question's intent, I'd say for most real-world programming situations, is_a? is actually the more appropriate idiom to use (and often a duck-typing check like Andrew Grimm mentions is even better). A strict class c...
In MVVM should the ViewModel or Model implement INotifyPropertyChanged?
...view-model somehow. Honest question, I'm dealing with this conundrum right now.
– Roger Lipscombe
Jan 18 '10 at 17:15
4
...
PHP UML Generator [closed]
...
A few years later command is now pear install PHP_UML-1.6.1 (see pear.php.net/package/PHP_UML/download/All or pear.php.net/package/PHP_UML)
– Ben
Nov 22 '13 at 4:27
...
Bootstrap 3 panel header with buttons wrong position
...(Edit: apparently that was because of adding a class to an h4... but still now the heading is too tall.)
– Nate
Dec 10 '14 at 16:11
...
jQuery how to bind onclick event to dynamically added HTML element [duplicate]
...
Indeed, when you are targeting known markup structures created by some other code. But here he was inserting the elements himself, and there is no clear selector for them (it's just an anchor, which there might be many of), so he would have to add additiona...
Why does Java have transient fields?
...eyword, one has to understand the concept of serialization. If the reader knows about serialization, please skip the first point.
What is serialization?
Serialization is the process of making the object's state persistent. That means the state of the object is converted into a stream of bytes to b...
How to use Sublime over SSH
...I set "/Users/path/to/local/copy" to my local root directory, but I don't know if that's right or if there's more to do. Any thoughts? I'm on OSX10.8
...
Horizontal ListView in Android?
...
It is deprectaed now
– Animesh Mangla
Dec 27 '15 at 13:05
|
show 1 more comment
...
Bash conditionals: how to “and” expressions? (if [ ! -z $VAR && -e $VAR ])
...$VAR is empty.
Your version does not work because it evaluates to [ -e ]. Now in this case, bash simply checks if the single argument (-e) is a non-empty string.
From the manpage:
test and [ evaluate conditional expressions using a set of rules based on the number of arguments. ...
1 argu...
Making the Android emulator run faster
...
UPDATE: Now that an Intel x86 image is available, the best answer is by zest above.
As CommonsWare has correctly pointed out, the emulator is slow because it emulates an ARM CPU, which requires translation to Intel opcodes. This vir...