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How to use HTML to print header and footer on every printed page of a document?
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What's the difference between Ruby's dup and clone methods?
...urce for answers to these questions, since it is quite clear, and a fairly compliant Ruby implementation.
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What is the difference in maven between dependency and plugin tags in pom xml?
...dded to the classpath while executing the tasks.
For example, you use a compiler-plugin to compile the java files. You can't use compiler-plugin as a dependency since that will only add the plugin to the classpath, and will not trigger any compilation. The Jar files to be added to the classpath w...
Are there disadvantages to using a generic varchar(255) for all text-based fields?
...h are defined as VARCHAR(255) even though none of these fields will ever come close to having 255 characters. (If you're wondering, it's this way because Ruby on Rails migrations map String fields to VARCHAR(255) by default and I never bothered to override it).
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Are the days of passing const std::string & as a parameter over?
... edited May 23 '17 at 12:18
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answered Apr 19 '12 at 16:41
Nicol BolasNicol Bo...
Are global variables bad? [closed]
...th global variables is that since every function has access to these, it becomes increasingly hard to figure out which functions actually read and write these variables.
To understand how the application works, you pretty much have to take into account every function which modifies the global stat...
Where to host an Open Source Project: CodePlex, Google Code, SourceForge? [closed]
... it, but since it's the accepted answer, I can't do that. Then again, it's community wiki and the community has kept it up-to-date - thank you for that!
SourceForge has crossed over to the dark side, taking over project and bundling them with Adware (Google GIMP Sourceforge Adware). Avoid at all c...
How do I delete a Git branch locally and remotely?
...ost cases the remote name is origin.
In such a case you'll have to use the command like so.
$ git push -d origin <branch_name>
Delete Local Branch
To delete the local branch use one of the following:
$ git branch -d branch_name
$ git branch -D branch_name
Note: The -d option is an alias...
“To Do” list before publishing Android app to market [closed]
... of the week (Thursday afternoon is usually a good time). Why so? Well, no companies would like to publish an app only 1.5 day before the week end -> too dangerous (in case there is a problem that needs a quick reaction time).
Use proguard on your app (usually, you just have to add this line: pro...
Uses for Optional
...he value, thereby "flattening" out absent values.
I'm sure somebody could come up with some contrived cases where they really want to store an Optional in a field or a collection, but in general, it is best to avoid doing this.
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