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Non-Relational Database Design [closed]
...oldemort,
etc)
Document databases (CouchDB,
MongoDB, etc)
Graph databases (AllegroGraph,
Neo4j, Sesame, etc)
I'm mostly into graph databases, and the elegance of data design using this paradigm was what brought me there, tired of the shortcomings of RDBMS. I have put a few examples of data design ...
How to wait in bash for several subprocesses to finish and return exit code !=0 when any subprocess
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wait also (optionally) takes the PID of the process to wait for, and with $! you get the PID of the last command launched in background.
Modify the loop to store the PID of each spawned sub-process into an array, and then loop again waiting o...
How to call shell commands from Ruby
How do I call shell commands from inside of a Ruby program? How do I then get output from these commands back into Ruby?
20...
Replacements for switch statement in Python?
...erformance is an issue, so it doesn't re-build the dict on every function call
– Claudiu
Oct 23 '08 at 16:22
56
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Downcasting in Java
Upcasting is allowed in Java, however downcasting gives a compile error.
11 Answers
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Is there a way to access an iteration-counter in Java's for-each loop?
...ide your own counter.
The reason for this is that the for-each loop internally does not have a counter; it is based on the Iterable interface, i.e. it uses an Iterator to loop through the "collection" - which may not be a collection at all, and may in fact be something not at all based on indexes (...
html select only one checkbox in a group
So how can I only allow a user to select only one checkbox?
16 Answers
16
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Functional, Declarative, and Imperative Programming [closed]
...ve expression is the referential transparency (RT) of its sub-expressions. All other attributes are either shared between both types of expressions, or derived from the RT.
A 100% declarative language (i.e. one in which every possible expression is RT) does not (among other RT requirements) allow th...
Tests not running in Test Explorer
...ts. I have been working with the resharper test runner - which works fine. All tests are running, all tests are showing the right test outcome. Now a coworker told me, that the tests are not running on his machine using the Visual Studio test explorer. They are not working either on my machine, so i...
Preloading images with jQuery
...(see link). It looks like '$('<img src="' + this + '" />') would actually create the element within a hidden DIV, because it is more "complicated". However, I don't think this is needed for most browsers.
– JoshNaro
Feb 11 '11 at 15:30
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