add a method to a class in javascript

To add a method to a class in JavaScript, you can use the prototype property. Here's an example:


index.tsx
class MyClass {
  constructor(name) {
    this.name = name;
  }

  // method to add
  sayHello() {
    console.log(`Hello, ${this.name}!`);
  }
}

// create an instance of MyClass
const myInstance = new MyClass("John");

// call the sayHello method
myInstance.sayHello(); // Output: Hello, John!
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In the example above, we added the sayHello method to the MyClass class using the prototype property. This method can then be called on any instance of the MyClass class.

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