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Is there a software-engineering methodology for functional programming? [closed]
... bases of what it takes to build real systems, while maintaining minimal mutable state in a highly controlled fashion. I'm toying with building Pong and Tetris in a FRelP style (excuse the strange initialism, but there is already another more popular FRP: Functional Reactive Programming).
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What does “S3 methods” mean in R?
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method calls look like canvas$drawRect("blue"). RC objects are also
mutable: they don’t use R’s usual copy-on-modify semantics, but are
modified in place. This makes them harder to reason about, but allows
them to solve problems that are difficult to solve with S3 or S4.
There...
How do function pointers in C work?
...eritance in C.
Let's say we want to make a subclass of String, say an ImmutableString. In order to make the string immutable, the set method will not be accessible, while maintaining access to get and length, and force the "constructor" to accept a char*:
typedef struct ImmutableString_Struct* Imm...
What are the pros and cons of performing calculations in sql vs. in your application
shopkeeper table has following fields:
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When to use a Content Provider
... best thing about it is that you can customize the contentproviders for suitable URIs.
Here's a scenario where you may have 5 tables in your database, but you need to join a few of them in certain orders before using them. And make a content URI for each of these joins. You could then each use thes...
The JPA hashCode() / equals() dilemma
...ness of the business id in the database. Why having THREE indexes for each table in the database then?
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When to use Storyboard and when to use XIBs
... need XIBs: In both of my Storyboard projects I had to use XIBs for custom table cells.
I think Storyboards are a step in the right direction for UI implementation and hope Apple will extend them in future iOS versions. They need to resolve the "single file" issue though, otherwise they won't be a...
Imply bit with constant 1 or 0 in SQL Server
...ared variables? What if you want to use this in a VIEW or single-statement table-valued UDF?
– Dai
Sep 3 at 2:17
@Dai ...
Returning IEnumerable vs. IQueryable
... approximately takes 90 seconds to run that block of code against a WebLog table which has 1 million records.
So, all table records are loaded into memory as objects, and then with each .Where() it will be another filter in memory against these objects.
When we use IQueryable instead of IEnumerabl...
Setting up connection string in ASP.NET to SQL SERVER
...tabase using the details verified above in the con string wizzard. Add any table and save the file.
Now go into the web config, and magically, you will see nice clean working connection string there with all the details you need.
{ Below was part of an old post so you can ignore this, I leave i...