TypeScript AST Playground

Investigate TypeScript AST Transformations

Input TypeScript Code

// Example TypeScript code
interface User {
  name: string;
  age: number;
}

function greetUser(user: User) {
  console.log('Hello, ' + user.name);
  return user.age > 18;
}

Transformed Code

AST Structure

About This Playground

This playground allows you to:

View the Abstract Syntax Tree (AST) of TypeScript code
Apply various AST transformations to make code more strict
Experiment with TypeScript Compiler API
Learn about code analysis and transformation patterns