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How to write a Unit Test?
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Define the expected and desired output for a normal case, with correct input.
Now, implement the test by declaring a class, name it anything (Usually something like TestAddingModule), and add the testAdd method to it (i.e. like the one below) :...
How are people managing authentication in Go? [closed]
For those building RESTful APIs and JS front-end apps in Go, how are you managing authentication? Are you using any particular libraries or techniques?
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How do I force Postgres to use a particular index?
...s a conscious decision made by the PostgreSQL team. A good overview of why and what you can do instead can be found here. The reasons are basically that it's a performance hack that tends to cause more problems later down the line as your data changes, whereas PostgreSQL's optimizer can re-evaluate ...
How to generate the JPA entity Metamodel?
...n processor, but you never know)
Yes it is. Here are the implementations and instructions for the various JPA 2.0 implementations:
EclipseLink
org.eclipse.persistence.internal.jpa.modelgen.CanonicalModelProcessor
Hibernate
org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor
http://in.rela...
Finding all cycles in a directed graph
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I found this page in my search and since cycles are not same as strongly connected components, I kept on searching and finally, I found an efficient algorithm which lists all (elementary) cycles of a directed graph. It is from Donald B. Johnson and the pap...
Determine device (iPhone, iPod Touch) with iOS
... the device running an application. I want to distinguish between iPhone and iPod Touch , if possible.
31 Answers
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When NOT to use yield (return) [duplicate]
... this O(n) times for a tree with n items, that makes the algorithm O(hn). And since the height of a binary tree is lg n <= h <= n, that means that the algorithm is at best O(n lg n) and at worst O(n^2) in time, and best case O(lg n) and worse case O(n) in stack space. It is O(h) in heap space...
Is there any difference between DECIMAL and NUMERIC in SQL Server?
Is there any difference between DECIMAL and NUMERIC data types in SQL Server?
6 Answers
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Code for decoding/encoding a modified base64 URL
I want to base64 encode data to put it in a URL and then decode it within my HttpHandler.
5 Answers
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Understanding ibeacon distancing
...estimates.
While the distance estimates are useful, they are not perfect, and require that you control for other variables. Be sure you read up on the complexities and limitations before misusing this.
When we were building the Android iBeacon library, we had to come up with our own independent a...