terminologia

I see in many codes and even architectures the word callback, I see that it is in JavaScript functions. but what is it? How is it used? why? I would like an actual usage example.

What is the difference between a code editor, a text editor and an IDE? People claim that Visual Studio Code is an editor of ... ng). is an IDE also a text and code editor? to what extent can they be considered what they are? are there others related?

I always see the word CORS related to an error occurred when trying to make a request XmlHttpRequest for a given page, which ... hat is the meaning of the word CORS ? Is this word used to define the error that occurred, or some Browser Security Policy?

What is Multi-Tenancy? What main approaches to implement it?

A long time ago I saw in the laboratory a "program" called POV-Ray and a doubt prompted me. The professor said it is a " prog ... these arguments? How can we define a programming language? What elements it is necessary to be present for it to be framed?

What characterizes imperative and functional programming and what are the differences between them in relation to each other? I can't understand these two paradigms. Note: If you can cite examples of them, preferably in JavaScript.

I know what a tuple is in Python but not in database, so follows the Question: What is a Tuple in the database context?

What does connection pool mean when it comes to database? What does this concept imply in practice? What is its usefulness an ... database maintained so that connections can be reused when future database requests are Required Source : Wikipedia

I'm not talking about web implementation indicator . Besides the acronym, why is it important?

A times I have been following questions that involve the term procedure in database, so the doubts: what is procedure? where to use it, what is it for? If possible examples of use clarify the layman's mind (mine).

I was chatting with some programmer friends when I heard the term "database normalization". Although I have heard this term a ... rm or can it be spoken in both ways? I no longer want to be ashamed to hear such a term in a meeting and be misunderstood :)

I have a code with multiple blocks TransactionScope and I didn't really understand its purpose. ModeloColDataContext dm = Da ... { // .... } } } Then the questions: What is it for? and when should we use?

, I Am confused about some of the features and terms of the XML markup language, which is: node, attribute, element and tag, ... 6</nota2> <nota3>4</nota3> <nota4>5</nota4> </aluno> </alunos>

Vi or use of Parallel.For e Parallel.ForEach in some places I know they are loops , but I have not understood how and when I ... e my doubts. What are loops Parallel.For and Parallel.ForEach? When should we use them? Have any differences between them?

I was reading a book about object orientation and these two entities are traded differently. What is the difference between the two?

In Object-Oriented Programming a lot is talked about in both instances of classes and objects. Looking for the meaning of eac ... n instance '. (7) "[..] objects are instantiated from a class, and each object is referred to as an instance of the class".

When I'm studying Object-Oriented Programming, at times I hear about Fields and attributes of a class, but the two seem to be ... to refer to the same thing. What's the difference? Taking advantage, can we say that a property is an attribute or a field?

In Java, we have so-called primitive types and so-called objects. What is the difference between the two?

I am currently developing hybrid applications and supposedly , I say supposedly, I am "simulating" my applications in brows ... ce). But actually, I don't know exactly if I'm "simulating" or "emulating". What difference between simulator and emulator?

After seeing arrays and arrays in programming, I got a little confused, so I would like to know, what is the difference between a array and a array?