大约有 10,700 项符合查询结果（耗时：0.0196秒） [XML]
What is the difference between object keys with quotes and without quotes?
...
Actually, the quotes can make a difference if you use a numeric literal as a property name. For example, obj = { 12e34: true }; is not the same as obj = { '12e34': true };. The former would require you to access the property through obj['1.2e+35'...
getSupportActionBar from inside of Fragment ActionBarCompat
...l have a valid activity accessible through getActivity().
You'll need to cast it to an ActionBarActivity then make the call to getSupportActionBar().
((AppCompatActivity)getActivity()).getSupportActionBar().setSubtitle(R.string.subtitle);
You do need the cast. It's not poor design, it's backwar...
Mockito: Inject real objects into private @Autowired fields
...kito will consider all fields having @Mock or @Spy annotation as potential candidates to be injected into the instance annotated with @InjectMocks annotation. In the above case 'RealServiceImpl' instance will get injected into the 'demo'
For more details refer
Mockito-home
@Spy
@Mock
...
How to convert An NSInteger to an int?
...
I get a warning using the suggested "casting": Implicit conversion loses integer precision: 'NSUInteger' (aka 'unsigned long') to 'int'
– djcj
Sep 18 '14 at 16:52
...
How to get all child inputs of a div element (jQuery)
...m/input-selector And here's a more complete list of these: api.jquery.com/category/selectors/form-selectors
– Nick Craver♦
Mar 8 '10 at 16:18
add a comment
...
How to specify a multi-line shell variable?
...s. By "unanticipated", I mean it runs in a context where you aren't specifically looking at its exit status. false by itself, for instance, would exit the shell. false || true would not, since you are anticipating the non-zero exit status by specifying another command to run if the first fails.
...
Run a JAR file from the command line and specify classpath
...Export function). My dependencies are all in a directory labeled lib . I can't seem to get a straight answer on how to execute my JAR file while specifying it should use the lib/* as the classpath.
...
Pandas dataframe get first row of each group
...nd
4 5 first
5 6 first
6 7 fourth
To get n first records, you can use head():
>>> df.groupby('id').head(2).reset_index(drop=True)
id value
0 1 first
1 1 second
2 2 first
3 2 second
4 3 first
5 3 third
6 4 second
7 4 fifth
8 5 fir...
How to prevent browser page caching in Rails
... this out - http://blog.serendeputy.com/posts/how-to-prevent-browsers-from-caching-a-page-in-rails/ in application_controller.rb
After Rails 5:
class ApplicationController < ActionController::Base
before_action :set_cache_headers
private
def set_cache_headers
response.headers["Cach...
Code for decoding/encoding a modified base64 URL
...
Bah, you beat me. I'll just delete my post cause it looks almost like I copied you :)
– AaronLS
Aug 4 '09 at 17:09
3
...