Declarative programming is a paradigm of expressing the logic of a computer program or computation without explicit describing its control flow.
Questions tagged [declarative]
365 questions
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Prolog query issue
Ok, let's say i have these two facts:
data1([50, 20, 15, 20, 25, 20, 84]).
data2([50, 30, 15, 5, 10, 18, 60]).
I want to make a query that asks whether the N-th element of the list defined as a part of those facts is some value.
query([L1|Tail]) :-…
user361633
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How I can add all the data in a knowledge base in Prolog?
I need help with this exercise of Prolog:
% items
items (cell).
items (labial).
items (control).
items (mirror).
% Weight of each item
weight (cell 2).
weight (labial, 3).
weight (control, 5).
weight (mirror, 10).
capacity (X, Y, Z, V) :-
…
Marztres
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Problem with declarative statement at asp.net 2.0
wanna ask you for help. I am bit lost with declarative statement in asp.net 2.0.
I want add specific class "selected" or "noselected" for A tag when current path is equal to path I provide. I tried st., but it is not working. The code is…
Jaroslav Urban
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Global variable in unbind method of OSGi service is null
My application is based on OSGi (Equinox). A OSGi service binds another service by defining a Component XML and bind / unbind methods in the appropriate class.
In the unbind method the value of a global String variable (same class like unbind…
user1056903
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write_canonical() and natural language interpretation
Implement the following two operators has and of in such a way that
with phrases like: peter has car of john answers to questions such as:
Who has What of X
I have this simple program that define two operator: has (that specify who have what)…
AndreaNobili
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How can I do this without a cursor or loop?
I hear to use Declarative programming but I have no idea how to do something like this in sql server 2005
(I typed this up really fast so I'm not sure if all the syntax is correct but I think you'll understand what I'm looking for)
declare curs…
user204588
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How can I represent business rules in Excel financial models?
I'm creating a "one-period" financial model in Excel - that is, a model where the formulas are consistent in each column, so you can copy/paste/extend them as desired.
I'm breaking out the model's assumptions into a separate sheet. For instance, I…
Jay Levitt
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SharepPoint 2010 Feature Upgrade Action rename field declarative way
I'm looking into Sharepoint 2010 Feature upgrade framework and all over the net I'm seeing examples of how to upgrade a feature by adding a new field to a existing content type and this is done like this:
Narcis
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What specific problems does Declarative Programming solve best?
I understand what declarative languages have to offer, but I have not yet connected the dots as to why I would use them. For example, I do not understand why describing a problem is more beneficial than writing a solution to an already understood…
Sage Gerard
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Asp.Net ListView LinqDataSource Declaratively Bind Child Objects
I have a ListView with a LinqDataSource. In the Edit Template we need to edit both the primary object and a related (1 to 1) child object.
In the past I have used code for all of this and manually handled Updates, but I am wondering whether there…
Serexx
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2 answers
How to get this Prolog program to work
I am currently trying to create a program that takes two inputs a base and an exponent, so basically im going to ask for those two things for example if the user of Prolog inputs base 2 and exponent 3, I want it to return 8.., Here is what I got so…
Steven Corea
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am I using anti-patterns in this implementation?
what i want to to in this component is straight-forward getting data of a selected question by the route id param.
difference is that i'm trying to make things as declarative as possible so my component looks like this:
export class…
Mando
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How to avoid using subscriptions and BehaviorSubject.value using a declarative approach in rxjs
While refactoring my angular application I basically want to get rid of all subscriptions in order to use only async pipe provided by angular (just a declarative approach instead of an imperative one).
I have problems to implement a declarative…
Fabian Strathaus
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Simple infinite iterator in Python
a few days ago I started working in my friend's startup as junior Python developer, we are the only employees.
I have noticed he sometimes writes strange code. For example this:
@pytest.fixture
def create_user_model_test_data():
…
Pablo
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What are the differences between imperative and functional programming languages?
What is the definitive answer regarding the differences between imperative languages and functional (a sub-set of declarative) programming languages, and can it be explained with practical examples? What are some of the main or most important…
Marcelo
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