This set of video tutorials provides an in-depth explanation of TypeScript, covering environment construction, various types in TypeScript (basic types, arrays, objects, tuples, enumerations, unknown, any, void, never, etc.), and the compilation of TypeScript. options, as well as related object-oriented knowledge in TypeScript (classes, abstract classes, and interfaces). At the end of the tutorial, the knowledge is systematically connected through a practical project "Snake". TS itself is not a sophisticated technology and can be easily mastered by students with a basic knowledge of JavaScript.