how to use the keysin function from the lodash library in typescript

To use the keysIn function from the Lodash library in TypeScript, you need to first install the library by running the command npm install lodash.

After installing Lodash, you can import the keysIn function from the library as follows:

index.ts
import { keysIn } from 'lodash';
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Next, you can use the keysIn function by passing it an object as an argument. The function will return an array containing all the properties and methods of the object, including those inherited from its prototype chain.

index.ts
class Person {
  public name: string;
  public age: number;
  constructor(name: string, age: number) {
    this.name = name;
    this.age = age;
  }
}

const person = new Person('John', 30);
console.log(keysIn(person)); // ["name", "age"]
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You can also use the keysIn function with plain JavaScript objects as shown below:

index.ts
const personObj = { name: 'John', age: 30 };
console.log(keysIn(personObj)); // ["name", "age"]
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Note that in TypeScript, you may need to add a type annotation for the object you are passing to the keysIn function to avoid type errors.