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data-structuresdeclarativeimperative-programming
Nora McDougall-Collins
Nora McDougall-Collins

Reputation: 531

How are data structures created in declarative programming?

An article I read gave this example for the difference between declarative and imperative programming:

Declarative

small_nums = [x for x in range(20) if x < 5]

Imperative

small_nums = []
for i in range(20):
if i < 5:
small_nums.append(i)

The imperative example declares an array. How is the data stored in the declarative example? Or is the storage structure determined by a separate piece of software?

Upvotes: 1

Views: 205

Answers (1)

Nora McDougall-Collins
Nora McDougall-Collins

Reputation: 531

Based on my searches, declarative programming does not create data structures. Instead, declarative programming is an abstraction. That it, it calls on objects that create the needed structures.

With that in mind, the imperative programming is not done away with, it's just pre-written.

Upvotes: 1

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