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Do you leave parentheses in or out in Ruby? [closed]
...heses can be left out of a single command that is surrounded by
ERb delimiters -- the ERb markers make
sure the code is still readable
A line that is a single command and a single simple argument can be
written without the parenthesis.
Personally, I find that I do this less
and less, but...
Which @NotNull Java annotation should I use?
...nar) to avoid NullPointerExceptions. Many of the tools seem incompatible with each others' @NotNull / @NonNull / @Nonnull annotation and listing all of them in my code would be terrible to read. Any suggestions of which one is the 'best'? Here is the list of equivalent annotations I've found:
...
Workflow for statistical analysis and report writing
... have any wisdom on workflows for data analysis related to custom report writing? The use-case is basically this:
14 Answe...
How do I ignore files in a directory in Git?
What is the proper syntax for the .gitignore file to ignore files in a directory?
10 Answers
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How to study design patterns? [closed]
...
The best way is to begin coding with them. Design patterns are a great concept that are hard to apply from just reading about them. Take some sample implementations that you find online and build up around them.
A great resource is the Data & Object F...
calculating the difference in months between two dates
...n't be able to get that from a TimeSpan, because a "month" is a variable unit of measure. You'll have to calculate it yourself, and you'll have to figure out how exactly you want it to work.
For example, should dates like July 5, 2009 and August 4, 2009 yield one month or zero months difference? I...
What is the naming convention in Python for variable and function names?
...ckground the naming convention for variables and method names are usually either camelCase or PascalCase:
13 Answers
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What is dynamic programming? [closed]
...Dynamic programming is used a lot in string problems, such as the string edit problem. You solve a subset(s) of the problem and then use that information to solve the more difficult original problem.
With dynamic programming, you store your results in some sort of table generally. When you need the...
Can media queries resize based on a div element instead of the screen?
... in. I cannot use the screen size as the div is just used like a widget within the webpage, and its size can vary.
11 Ans...
How to set a default value for an existing column
...:
ALTER TABLE Employee ADD CONSTRAINT DF_SomeName DEFAULT N'SANDNES' FOR CityBorn;
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