@typescript-eslint/parser allows ESLint to lint TypeScript code. It converts TypeScript code into an Abstract Syntax Tree (AST) compatible with ESLint. This enables using ESLint's rules on TypeScript files, enforcing consistent style and identifying potential errors. It is a core component of the @typescript-eslint ecosystem, facilitating static analysis. By parsing TypeScript syntax, @typescript-eslint/parser allows developers to benefit from the code quality checks offered by ESLint within their TypeScript projects.