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Difference between 'struct' and 'typedef struct' in C++?
...C89 §3.1.2.3, C99 §6.2.3, and C11 §6.2.3) mandates separate namespaces for different categories of identifiers, including tag identifiers (for struct/union/enum) and ordinary identifiers (for typedef and other identifiers).
If you just said:
struct Foo { ... };
Foo x;
you would get a compile...
PostgreSQL database default location on Linux
What is the default directory where PostgreSQL will keep all databases on Linux?
8 Answers
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Python threading.timer - repeat function every 'n' seconds
...stop and reset the timer. I'm not too knowledgeable of how Python threads work and am having difficulties with the python timer.
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What is the difference between Class Path and Build Path
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The build path is used for building your application. It contains all of your source files and all Java libraries that are required to compile the application.
The classpath is used for executing the application. This includes all java classes and ...
Advantage of switch over if-else statement
What's the best practice for using a switch statement vs using an if statement for 30 unsigned enumerations where about 10 have an expected action (that presently is the same action). Performance and space need to be considered but are not critical. I've abstracted the snippet so don't hate m...
Underscore: sortBy() based on multiple attributes
I am trying to sort an array with objects based on multiple attributes. I.e if the first attribute is the same between two objects a second attribute should be used to comapare the two objects. For example, consider the following array:
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What is the difference between named and positional parameters in Dart?
Dart supports both named optional parameters and positional optional parameters. What are the differences between the two?
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Xml Namespace breaking my xpath! [duplicate]
.../List/Fields/Field
When I remove the xmlns from my XML
the xPath works fine. When it's in
there my xPath finds nothing
If you cannot register a namespace binding and cannot use (assuming the registered prefix is "x"):
/x:List/x:Fields/x:Field
then there is another way:
/*[name()='Li...
How do you delete an ActiveRecord object?
How do you delete an ActiveRecord object?
4 Answers
4
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Java: Get last element after split
... use the array's length field to find its length. Subtract one to account for it being 0-based:
String[] bits = one.split("-");
String lastOne = bits[bits.length-1];
Caveat emptor: if the original string is composed of only the separator, for example "-" or "---", bits.length will be 0 and this w...