If you already know some programming languages inspired by the old C language or have some experience of JavaScript, much of the Dart syntax will be easy for you to understand. Dart provides the most typical operators for manipulating variables. Its built-in types are the most common ones found in high-level programming languages, with a few particularities. Also, control flows and functions are very similar to typical ones. Let's review some of the structure of the Dart programming language before diving into Flutter.
If you already know Dart, you can use this section as a review of the Dart syntax; otherwise, you can check out this introduction and refer to the Dart language tour for a quick and easy learning guide on Dart: https://dart.dev/guides/language/language-tour.