Lectures

In this article, you will learn what limitations exist in the local labor market, how the global market differs, what advantages it provides to specialists, and what requirements it places on candidates. This material will help you understand how to build a career in international companies and use the opportunities of globalization for professional growth.

We break down how in Kotlin you can return multiple values from a function using the containers Pair and Triple, how to read components via first/ second/ third, how to create pairs via the infix function to (and why 1 to 10 is not the range 1 .. 10), and also where Pair/ Triple are useful and which mistakes are most often made when using them.

We break down destructuring in Kotlin: how to “unpack” Pair and Triple via val ( a , b ), when it’s more convenient to use the first/ second properties, how to skip unnecessary components with _, and what really sits behind the syntax — calls to componentN() and a temporary variable so the expression on the right is evaluated only once.

We break down how to return multiple values in Kotlin via the Pair and Triple containers: why a function formally returns “one” value, how to lock in the meaning and order of components (the result contract), why you almost always want to destructure into val (min , max ), and where first/ second/ third start to hurt readability. In practice, we write a mini string parser and assemble the result into a Pair/ Triple, and finish with common mistakes and rules of good style.

We break down local functions in Kotlin: why they are useful in a “script-like” main(), how they differ from extracting logic into a file-level private fun, where it’s better to declare helpers, and how to keep dependencies explicit via parameters and return values. In practice, we build a mini-receipt parser ( Pair<String, Int>?) with local norm and safeSubstringOrNull, and look at name shadowing and typical mistakes.

We break down what closures are in Kotlin and how local functions “capture” external variables: safe capture of val, convenient but tricky capture of var, the “current value” effect for mutable variables, a practical mini expense-tracker example, and a set of common mistakes that turn code with hidden state into a detective story.

In this lecture, you will learn how modern development teams deliver their code to a server: from making changes and building the project to automation with CI/CD and deployment via Docker. We will cover the main tools, stages, and approaches that make deployment fast, reliable, and convenient.