typescript中的打印类型对象

class MyClass {
  myProperty: string;
  constructor(myProperty: string) {
    this.myProperty = myProperty;
  }
}

const myInstance = new MyClass("Hello, TypeScript!");

console.log(typeof myInstance); // "object"
console.log(myInstance instanceof MyClass); // true

type MyType = {
  name: string;
  age: number;
};

const myObject: MyType = {
  name: "John",
  age: 30,
};

console.log(myObject); // { name: "John", age: 30 }

type MyType = {
  name: string;
  age: number;
};

const myObject: MyType = {
  name: "John",
  age: 30,
};

console.log(myObject); // { name: "John", age: 30 }
console.log(JSON.stringify(myObject, null, 2)); // Pretty-printed JSON

npm install ts-morph

import { Project } from "ts-morph";

const project = new Project();
const sourceFile = project.createSourceFile("example.ts", `
type MyType = {
  name: string;
  age: number;
};

const myObject: MyType = {
  name: "John",
  age: 30,
};
`);

const myType = sourceFile.getTypeAliasOrThrow("MyType");
console.log(myType.getText());

npm install reflect-metadata

{
  "compilerOptions": {
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true
  }
}

import "reflect-metadata";

class MyClass {
  constructor(
    public myProperty: string,
    public myNumber: number
  ) {}
}

function logType(target: any, key: string) {
  const type = Reflect.getMetadata("design:type", target, key);
  console.log(`${key} type: ${type.name}`);
}

class MyDecoratedClass {
  @logType
  myProperty: string;

  @logType
  myNumber: number;

  constructor(myProperty: string, myNumber: number) {
    this.myProperty = myProperty;
    this.myNumber = myNumber;
  }
}

const instance = new MyDecoratedClass("Hello", 42);