How does TypeScript help you in your work? What does typing in it look like?

TypeScript helps in work through static typing, which detects errors at compile time rather than during execution. This increases the reliability and ease of maintaining code, especially in large projects. Typing in TypeScript is structural and optional: you can explicitly specify types of variables, functions, interfaces, classes, or use the compiler's type inference. This allows describing complex data structures, controlling the contract between parts of the application, and getting autocomplete and type checking in the editor.

Example of function typing:

function sum(a: number, b: number): number {
  return a + b;
}

If you try to pass a string to sum, TypeScript will give an error even before running the code.