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What is mattr_accessor in a Rails module?
...or generates getter/setter methods for instances, cattr/mattr_accessor provide getter/setter methods at the class or module level. Thus:
module Config
mattr_accessor :hostname
mattr_accessor :admin_email
end
is short for:
module Config
def self.hostname
@hostname
end
def self.host...
What exactly is Python multiprocessing Module's .join() Method Doing?
...iprocessing docs as it should be, but it is mentioned in the Programming Guidelines section:
Remember also that non-daemonic processes will be automatically be
joined.
You can override this behavior by setting the daemon flag on the Process to True prior to starting the process:
p = Process...
What are the differences between Helper and Utility classes?
...class or it can be stateful or require an instance be created. I would avoid this if possible.
If you can make the name more specific. e.g. if it has sorting methods, make it XSorter
For arrays you can find helper classes like
Array
Arrays
ArrayUtil
ArrayUtils
ArrayHelper
BTW a short hand for ...
How to use Session attributes in Spring-mvc
...p://www.springframework.org/schema/aop/spring-aop-3.1.xsd">
<bean id="user" class="com.User" scope="session">
<aop:scoped-proxy/>
</bean>
</beans>
then inject class in each controller that you want
@Autowired
private User user
5.Pass HttpSession to...
What should every programmer know about security? [closed]
...if you want your applications to be secure:
Never trust any input!
Validate input from all untrusted sources - use whitelists not blacklists
Plan for security from the start - it's not something you can bolt on at the end
Keep it simple - complexity increases the likelihood of security holes
...
How to add text to a WPF Label in code?
I feel stupid but cannot find out how to add a text to a WPF Label control in code. Like following for a TextBlock:
6 Answe...
How to Set Focus on Input Field using JQuery
... required:
$('#myModal').on('shown.bs.modal', function () {
$('#textareaID').focus();
})
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what is the most efficient way of counting occurrences in pandas?
...t sure why count should be much slower than max. Both take some time to avoid missing values. (Compare with size.)
In any case, value_counts has been specifically optimized to handle object type, like your words, so I doubt you'll do much better than that.
...
How can I get WebStorm to recognize Jasmine methods?
...
You can use predefined JS library stubs in Webstorm/PHPStorm/Idea
Open File > Settings...
Select Languages & Frameworks > JavaScript > Libraries
Click on Download...
Swich to TypeScript community stubs
Find karma-jasmine (originally under the name jasmine) (If this ...
Java - Including variables within strings?
...easily reformat or even reorder the variables you input. It's easier to avoid mistakes (like 1 + "oops"), especially if you use FindBugs (which parses format strings and input parameters). And, as the asker says, in many cases it's more readable. Of course, it's a shame that the format method has be...