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Array slicing in Ruby: explanation for illogical behaviour (taken from Rubykoans.com)
...nterested in a link if any just to explain the "why" like the OP and other commenters are asking. Your diagram makes sense except Array[4] is nil. Array[3] is :jelly. I would expect Array[4,N] to be nil but it's [] like the OP says. If it's a place, it's a pretty useless place because Array[4, -...
Intellij IDEA show javadoc automatically
When I am coding at Netbeans it autocompletes the code and show Javadocs. However when I am using Intellij IDEA if I click Ctrl+Space I can see the auto-complete and if I click Ctrl+Q I can see the javadoc seperately.
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SVN checkout the contents of a folder, not the folder itself
...out the trunk folder of a project into my public_html directory using this command (while in public_html):
4 Answers
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Correct approach to global logging in Golang
...arate logger. It's probably a good idea to create a logger for each bigger component of your project. For example, if your project uses a SMTP service for sending mails, creating a separate logger for the mail service sounds like a good idea so that you can filter and turn off the output separately....
Plotting with seaborn using the matplotlib object-oriented interface
...ctions in an object-oriented context, but all of your customization has to come after you've called the function.
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REST authentication and exposing the API key
...ONLY BY THE SERVER (because nobody else knows it) to generate a sign to be compared to the client's sign. So the question: What kind of data is being combined with the 'api key' that nobody else knows beyond the client and the server? Sign = api_key + what?
– ACs
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Foreign key constraints: When to use ON UPDATE and ON DELETE
... the foreign key constraints are quite advanced.
We'll take an example, a company table with a user table containing people from theses company
CREATE TABLE COMPANY (
company_id INT NOT NULL,
company_name VARCHAR(50),
PRIMARY KEY (company_id)
) ENGINE=INNODB;
CREATE TABLE USER (
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How to clear MemoryCache?
...MemoryCache documentation makes me wonder if disposing and recreating is recommended: "Do not create MemoryCache instances unless it is required. If you create cache instances in client and Web applications, the MemoryCache instances should be created early in the application life cycle." Does this ...
what is the best way to convert a json formatted key value pair to ruby hash with symbol as key?
... you can pass in the symbolize_names option. See here: http://flori.github.com/json/doc/index.html (look under parse)
eg:
>> s ="{\"akey\":\"one\",\"bkey\":\"two\"}"
>> JSON.parse(s,:symbolize_names => true)
=> {:akey=>"one", :bkey=>"two"}
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wpf: how to show tooltip when button disabled by command?
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MSDN reference: msdn.microsoft.com/en-us/library/…
– David
Mar 8 '13 at 5:27
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