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Separation of concerns
The Next CEO of Stack OverflowTail recursion - Scala (any language else)Does functional programming replace GoF design patterns?Is the Scala 2.8 collections library a case of “the longest suicide note in history”?Is functional GUI programming possible?Large-scale design in Haskell?What is the Scala identifier “implicitly”?Right Arrow meanings in ScalaWhat is the formal difference in Scala between braces and parentheses, and when should they be used?What is the apply function in Scala?Are polymorphic functions “restrictive” in Scala?Why I need a new primitive?
I am trying to learn functional programming in scala with book FPiS in chapter 5 the author mentions:
A major theme in functional programming is separation of concerns and
seperating program description from evaluation.
What does it mean? Could someone give an example?
scala functional-programming
edited Mar 7 at 14:06
Cœur
19.1k9114155
asked May 17 '17 at 9:14
zero_codingzero_coding
8,1132068146
add a comment |
I am trying to learn functional programming in scala with book FPiS in chapter 5 the author mentions:
A major theme in functional programming is separation of concerns and
seperating program description from evaluation.
What does it mean? Could someone give an example?
scala functional-programming
edited Mar 7 at 14:06
Cœur
19.1k9114155
asked May 17 '17 at 9:14
zero_codingzero_coding
8,1132068146
1
I think separation of concerns is a major topic in any programming language. Based on what I have learned, it means that you should subdivide a program into parts that each (aim to) solve a concern/problem. The parts should be as independent from the other parts as possible.
– Willem Van Onsem
May 17 '17 at 9:17
What doesprogram descriptionmean?
– zero_coding
May 17 '17 at 9:35
1
a document describing what the program is supposed to do. For instance a program description can be "a system where a person enters orders, and where an employee can mark which orders are completed". Although usually it is of course more extensive.
– Willem Van Onsem
May 17 '17 at 9:36
2
If you read the first chapter (about the coffee shop) that is a good example. The buyCoffee function is not concerned with the transaction, etc.
– Tom
May 17 '17 at 9:38
add a comment |
I am trying to learn functional programming in scala with book FPiS in chapter 5 the author mentions:
A major theme in functional programming is separation of concerns and
seperating program description from evaluation.
What does it mean? Could someone give an example?
scala functional-programming
edited Mar 7 at 14:06
Cœur
19.1k9114155
asked May 17 '17 at 9:14
zero_codingzero_coding
8,1132068146
I am trying to learn functional programming in scala with book FPiS in chapter 5 the author mentions:
A major theme in functional programming is separation of concerns and
seperating program description from evaluation.
What does it mean? Could someone give an example?
scala functional-programming
scala functional-programming
edited Mar 7 at 14:06
Cœur
19.1k9114155
asked May 17 '17 at 9:14
zero_codingzero_coding
8,1132068146
edited Mar 7 at 14:06
Cœur
19.1k9114155
asked May 17 '17 at 9:14
zero_codingzero_coding
8,1132068146
edited Mar 7 at 14:06
Cœur
19.1k9114155
edited Mar 7 at 14:06
Cœur
19.1k9114155
edited Mar 7 at 14:06
Cœur
19.1k9114155
19.1k9114155
asked May 17 '17 at 9:14
zero_codingzero_coding
8,1132068146
asked May 17 '17 at 9:14
zero_codingzero_coding
8,1132068146
asked May 17 '17 at 9:14
zero_codingzero_coding
8,1132068146
8,1132068146
1
I think separation of concerns is a major topic in any programming language. Based on what I have learned, it means that you should subdivide a program into parts that each (aim to) solve a concern/problem. The parts should be as independent from the other parts as possible.
– Willem Van Onsem
May 17 '17 at 9:17
What doesprogram descriptionmean?
– zero_coding
May 17 '17 at 9:35
1
a document describing what the program is supposed to do. For instance a program description can be "a system where a person enters orders, and where an employee can mark which orders are completed". Although usually it is of course more extensive.
– Willem Van Onsem
May 17 '17 at 9:36
2
If you read the first chapter (about the coffee shop) that is a good example. The buyCoffee function is not concerned with the transaction, etc.
– Tom
May 17 '17 at 9:38
add a comment |
1
I think separation of concerns is a major topic in any programming language. Based on what I have learned, it means that you should subdivide a program into parts that each (aim to) solve a concern/problem. The parts should be as independent from the other parts as possible.
– Willem Van Onsem
May 17 '17 at 9:17
What doesprogram descriptionmean?
– zero_coding
May 17 '17 at 9:35
1
a document describing what the program is supposed to do. For instance a program description can be "a system where a person enters orders, and where an employee can mark which orders are completed". Although usually it is of course more extensive.
– Willem Van Onsem
May 17 '17 at 9:36
2
If you read the first chapter (about the coffee shop) that is a good example. The buyCoffee function is not concerned with the transaction, etc.
– Tom
May 17 '17 at 9:38
1
1
I think separation of concerns is a major topic in any programming language. Based on what I have learned, it means that you should subdivide a program into parts that each (aim to) solve a concern/problem. The parts should be as independent from the other parts as possible.
– Willem Van Onsem
May 17 '17 at 9:17
I think separation of concerns is a major topic in any programming language. Based on what I have learned, it means that you should subdivide a program into parts that each (aim to) solve a concern/problem. The parts should be as independent from the other parts as possible.
– Willem Van Onsem
May 17 '17 at 9:17
What does
program description mean?– zero_coding
May 17 '17 at 9:35
What does
program description mean?– zero_coding
May 17 '17 at 9:35
1
1
a document describing what the program is supposed to do. For instance a program description can be "a system where a person enters orders, and where an employee can mark which orders are completed". Although usually it is of course more extensive.
– Willem Van Onsem
May 17 '17 at 9:36
a document describing what the program is supposed to do. For instance a program description can be "a system where a person enters orders, and where an employee can mark which orders are completed". Although usually it is of course more extensive.
– Willem Van Onsem
May 17 '17 at 9:36
2
2
If you read the first chapter (about the coffee shop) that is a good example. The buyCoffee function is not concerned with the transaction, etc.
– Tom
May 17 '17 at 9:38
If you read the first chapter (about the coffee shop) that is a good example. The buyCoffee function is not concerned with the transaction, etc.
– Tom
May 17 '17 at 9:38
add a comment |
2 Answers
2
active
oldest
votes
Here I provided an example of implementing a tail recursion manually. Tail recursion - Scala (any language else)
It is an example of separation of algorithm description and evaluation.Recursive trait describes only one iteration of some recursive algorithm.
Method interpret knows nothing about algorithm's logic and just runs it until it is finished.
For example you can introduce a delay between iteration or limit the number of iteration without changing the algorithm described in Recursive.
edited May 23 '17 at 11:47
Community♦
11
answered May 17 '17 at 11:17
simpadjosimpadjo
1,4361818
add a comment |
The key to this is in the phrase
seperating program description from evaluation
An example is using a DSL represented by an ADT (that represents the grammar of your DSL) and an interpreter. Because other people are probably better than me in describing this in detail, I'll just link to an example here: http://typelevel.org/cats/datatypes/freemonad.html
That one uses free monads which are a somewhat hot topic currently but demonstrate very good what you're asking for in my opinion.
answered May 17 '17 at 9:36
jan0schjan0sch
626
add a comment |
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2 Answers
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active
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2 Answers
2
active
oldest
votes
active
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Here I provided an example of implementing a tail recursion manually. Tail recursion - Scala (any language else)
It is an example of separation of algorithm description and evaluation.Recursive trait describes only one iteration of some recursive algorithm.
Method interpret knows nothing about algorithm's logic and just runs it until it is finished.
For example you can introduce a delay between iteration or limit the number of iteration without changing the algorithm described in Recursive.
edited May 23 '17 at 11:47
Community♦
11
answered May 17 '17 at 11:17
simpadjosimpadjo
1,4361818
add a comment |
Here I provided an example of implementing a tail recursion manually. Tail recursion - Scala (any language else)
It is an example of separation of algorithm description and evaluation.Recursive trait describes only one iteration of some recursive algorithm.
Method interpret knows nothing about algorithm's logic and just runs it until it is finished.
For example you can introduce a delay between iteration or limit the number of iteration without changing the algorithm described in Recursive.
edited May 23 '17 at 11:47
Community♦
11
answered May 17 '17 at 11:17
simpadjosimpadjo
1,4361818
add a comment |
Here I provided an example of implementing a tail recursion manually. Tail recursion - Scala (any language else)
It is an example of separation of algorithm description and evaluation.Recursive trait describes only one iteration of some recursive algorithm.
Method interpret knows nothing about algorithm's logic and just runs it until it is finished.
For example you can introduce a delay between iteration or limit the number of iteration without changing the algorithm described in Recursive.
edited May 23 '17 at 11:47
Community♦
11
answered May 17 '17 at 11:17
simpadjosimpadjo
1,4361818
Here I provided an example of implementing a tail recursion manually. Tail recursion - Scala (any language else)
It is an example of separation of algorithm description and evaluation.Recursive trait describes only one iteration of some recursive algorithm.
Method interpret knows nothing about algorithm's logic and just runs it until it is finished.
For example you can introduce a delay between iteration or limit the number of iteration without changing the algorithm described in Recursive.
edited May 23 '17 at 11:47
Community♦
11
answered May 17 '17 at 11:17
simpadjosimpadjo
1,4361818
edited May 23 '17 at 11:47
Community♦
11
edited May 23 '17 at 11:47
Community♦
11
edited May 23 '17 at 11:47
Community♦
11
11
answered May 17 '17 at 11:17
simpadjosimpadjo
1,4361818
answered May 17 '17 at 11:17
simpadjosimpadjo
1,4361818
answered May 17 '17 at 11:17
simpadjosimpadjo
1,4361818
1,4361818
add a comment |
add a comment |
The key to this is in the phrase
seperating program description from evaluation
An example is using a DSL represented by an ADT (that represents the grammar of your DSL) and an interpreter. Because other people are probably better than me in describing this in detail, I'll just link to an example here: http://typelevel.org/cats/datatypes/freemonad.html
That one uses free monads which are a somewhat hot topic currently but demonstrate very good what you're asking for in my opinion.
answered May 17 '17 at 9:36
jan0schjan0sch
626
add a comment |
The key to this is in the phrase
seperating program description from evaluation
An example is using a DSL represented by an ADT (that represents the grammar of your DSL) and an interpreter. Because other people are probably better than me in describing this in detail, I'll just link to an example here: http://typelevel.org/cats/datatypes/freemonad.html
That one uses free monads which are a somewhat hot topic currently but demonstrate very good what you're asking for in my opinion.
answered May 17 '17 at 9:36
jan0schjan0sch
626
add a comment |
The key to this is in the phrase
seperating program description from evaluation
An example is using a DSL represented by an ADT (that represents the grammar of your DSL) and an interpreter. Because other people are probably better than me in describing this in detail, I'll just link to an example here: http://typelevel.org/cats/datatypes/freemonad.html
That one uses free monads which are a somewhat hot topic currently but demonstrate very good what you're asking for in my opinion.
answered May 17 '17 at 9:36
jan0schjan0sch
626
The key to this is in the phrase
seperating program description from evaluation
An example is using a DSL represented by an ADT (that represents the grammar of your DSL) and an interpreter. Because other people are probably better than me in describing this in detail, I'll just link to an example here: http://typelevel.org/cats/datatypes/freemonad.html
That one uses free monads which are a somewhat hot topic currently but demonstrate very good what you're asking for in my opinion.
answered May 17 '17 at 9:36
jan0schjan0sch
626
answered May 17 '17 at 9:36
jan0schjan0sch
626
answered May 17 '17 at 9:36
jan0schjan0sch
626
answered May 17 '17 at 9:36
jan0schjan0sch
626
626
add a comment |
add a comment |
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I think separation of concerns is a major topic in any programming language. Based on what I have learned, it means that you should subdivide a program into parts that each (aim to) solve a concern/problem. The parts should be as independent from the other parts as possible.
– Willem Van Onsem
May 17 '17 at 9:17
What does
program descriptionmean?– zero_coding
May 17 '17 at 9:35
1
a document describing what the program is supposed to do. For instance a program description can be "a system where a person enters orders, and where an employee can mark which orders are completed". Although usually it is of course more extensive.
– Willem Van Onsem
May 17 '17 at 9:36
2
If you read the first chapter (about the coffee shop) that is a good example. The buyCoffee function is not concerned with the transaction, etc.
– Tom
May 17 '17 at 9:38