Скачать или смотреть code (almost) every day 2024: day 204

Today I completed more of the android basics with compose course. today was all part of the kotlin fundamentals pathway. I learnt abbout functions as a first class value in kotlin, which means that functions in kotlin are data types like any other data type, say Int, and can be assigned to variables or passes or returned from functions. I also learnt about lambda expressions in Kotlin which are function bodies are the equivalent to the data type literals of other data types but for functions. So 3 is a literal value for the Int data type. And { println("hello") } is a literal value for a function data type with no parameters and a Unit return type. I learnt some cool quick ways of writing string literals in java and invoking higher order functions (which take a function as a parameter or return a function) which have a final parameter which is a function using trailing lambda syntax in Kotlin. I learnt about the repeat higher order function from Kotlin which is a concise way of writing a for loop that iterates a few times. I also learnt about some OOP basics in Kotlin today, or maybe that was mostly yesterday. Basically inheritance, interfaces, classes and constructors, access modifiers: private, public, protected (in java not package private but only visible with class and subclass), internal (only visible within module which is a Kotlin thing I haven't understood yet). I have some exercises left on Kotlin fundamentals to do. I'm about 16 hours behind where I expected to be in this android basics for beginner course. Was a little slow today. Kind of lazy. It's a lot of reading of concepts I already understand in OOP but in a new language.