característica-linguagem

What is the difference between null and undefined?

Most programming languages have a "null" type to represent the absence of a value. It can have several names (null, nil, None ... roach in case this is out of your control? (i.e. external libraries/frameworks use one or the other type in the same script)

What are the main differences between Kotlin and Java?

A long time ago I became aware of the existence of the Kotlin language. I know that you need the JVM to run and that it is co ... my interest in it has grown. So, what are the main differences between them? What can Kotlin offer/solve/improve over Java?

What are the main features of the Go language?

I started to hear a lot about GoLang and that it is increasingly gaining ground among the most used programming languages. A ... system? How do types work in it? What was the purpose of its creation? if anyone can give me a basic idea about GoLang.

What is the comma for?

The comma is what? Just a construction of language? An operator? Why does she exist? This question is based on what was seen in How to return or extract more than one value from a function?. return base2, base3, base4

What are the main differences and advantages between PHP and Hack languages?

I see that the syntax of both are quite similar, but for sure they have their differences, after all they are not one. What ... er others. Just a summary of the differences and advantages. I will ask new questions according to the answers if necessary.

What characterizes a programming language?

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 are the main differences between Kotlin and Scala?

The differences between Kotlin and Java are already clear, such as: more concise (up to 40% reduction of code) Null Sa ... ns in the JVM. So, what are the main differences between Kotlin and Scala? What are the gaps in Scala what motivated Kotlin?

What is the difference of "node", "attribute", "element" and "tag" in XML?

, 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>

What is the difference between Type-safe and Null-safe?

I'm writing an article about Kotlin, and I came across these guys, if anyone can help me. What is the difference between Type-safe and Null-safe?

What is the difference between keys "{} "and brackets" []"?

The JSON file format uses two types of symbols to organize the data in its structure, they are: square brackets: [ ] Key ... now what are the differences between brackets [ ] and keys { } and what would be the appropriate situations for each of them?

What is an interpreted language? Java is interpreted?

In this question here I quote that Java is an interpreted language as I have always understood it that way. But I have been c ... I got some doubts: What is an interpreted language? so Java has already been interpreted but is it no more? Is that it?

What are Raw Types?

Reading and studying a little about Kotlin, I found the following affirmative: The Raw Types are a big problem, but fo ... tlin because it is a new language no longer has this problem. What exactly are Raw Types? And why are they a big problem?

What is the Rust programming language?

According to the official page of the language: Rust is a systems programming language that runs incredibly fast, prev ... etween them? The Expression "Systems programming" (in English, systems programming) is also mentioned. What does that mean?

What is Kotlin?

I've heard a lot about Kotlin. What is it? Is it a programming language? If yes: what are the main features? Can I program ... ystem? And run? How do the guys work in it? I don't want to know everything, but some basic information about what this is.

What is the difference between init and new?

What is the difference between the special methods __init__ and __new__ in Python?

After all why use C when programming in C++?

I'm learning C++ and I can't understand why people think Who knows C knows C++? Or are the differences between the two neglig ... s just an example, it seems that currently in some versions of C++ can not use 100% of a C syntax because it will give error.

What are and what is the function of each string prefix in Python?

In Python, it is common to see strings with a prefix, such as below, where the prefix r is used: r"""OS routines for NT o ... swer address both Version 2 and Version 3 of the language, as well as describe the differences, if any, between the versions.

How is a programming language developed?

How is a programming language created? In general terms, where and how does the validation of the functionalities of the new ... as question about it. I don't care about how a compiler works and its difference to the language, this has been asked before.

What is the difference between a static and dynamic programming language?

Some time ago, Facebook launched its own programming language, based on PHP. See: Technoblog: Facebook announces Hack, its ow ... isadvantages It can be said that are script languages always dynamic and vice versa? (See: what is a scripting language?)

Why multiplication is faster than division?

Bit brushing question, but I was reading an article on javascript where it says division is slower than doing multiplications ... e article I mentioned in Section Math : http://jessefreeman.com/game-dev/intro-to-programming-for-games-with-javascript /