What is the difference between imperative and interrogative code

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Already a User? Old Fashioned? Sign Up Using Email. Display Name mandatory! Ben Davis April 14, How do you tell the difference between imperative and declarative sentences? What is the difference between declarative and simple sentences? What are the 5 kinds of sentences with examples?

What is the kinds of sentences? What are the 8 parts of speech? What is the example of sentence? What is a sentence give three examples? We're a place where coders share, stay up-to-date and grow their careers. Let's first talk about a coding style you want to avoid throughout your programming career, whether you are just writing code for yourself or for others.

To be clear, a person's code never strictly falls into one category or another, but it is a useful way of referring to the manner in which we code, according to whom or what it is best suited.

Written code is referred to as imperative or declarative. These are complex-sounding words for ultimately simple concepts:. Imperative code is when we write code more suitable for a computer and declarative code is that is more readable for a person.

In more specific terms, imperative code is when we tell JavaScript or whatever language in which you're coding what to do and how to do it. Let's create our list of people. Next, we want to store each written invitation as well, so let's create an invitations array for those to be put in.

As you might have already guessed, we need to iterate over this array to accomplish our goal. First, we're going to do in the way it needed to be done for most of JavaScript's lifetime: with a for-loop.

According to the steps I mentioned, we want to loop iterate over an array, getting each element, a person's name, which we add to a message the string above and then adding it to a new array. This is all imperative , we're telling JavaScript exactly what to do and how to do it. And all of this code is correct. However, your first intuition about this code as with so many of us who look at a for-loop for the first time , may be that it doesn't look right.

That being said, it has undoubtedly been the most popular way to iterate over arrays over the course of the language's lifetime. Yet it's imperative and challenging to read and remember.

Declarative code is different. As the name indicates, we declare with it what we want to accomplish, and JavaScript will do it—simple as that. In other words, it is readable to us as humans and not just to the computer.