Say I have an object like below:

const console = {
  write(text: string) {
    /* logic */
    return this;
  },
  writeLine(text: string) {
    /* logic */
    return this;
  }
};

What should be the return type of write and writeLine methods here?

I know that we can define an interface and set that as the return type but is there any other way to set the type that refers to the object?

CodePudding user response：

You can define return type explicitly in this way:

const _console = {
  write(text: string): typeof this {
    /* logic */
    return this;
  },
  writeLine(text: string): typeof this {
    /* logic */
    return this;
  }
};

Playground

Or you can define your console as a class and just use this:

class Console {
  write(text: string): this {
    /* logic */
    return this;
  }
  writeLine(text: string): this {
    /* logic */
    return this;
  }
};

Playground

I hope it makes ESLint happy :D