Summary

In this chapter, you have seen an introduction to some of the core concepts of Dart programming, starting with the basics of variable declaration, where you have seen how to use var, final, and const, and their differences.

You have seen how to use strings and string interpolation, which allow you to add expressions within a string, making it easier to create dynamic strings. Dart supports string interpolation using the $ symbol for variables and ${} to evaluate an expression within a string.

You have seen different ways to use functions, and their positional, optional, and named parameters. You have also treated functions as values in first-class functions, and seen how to use higher-order functions, which allow you to write less code by passing functions as arguments to other functions.

You have seen how to work with collections, including List, Set, and Map.

You have used the cascade operator, which allows you to chain multiple method calls on an object...