arrow function

Arrow functions provide a concise way to write functions. Main purpose is to write a function within a function without having to declare it outside and call it.

(parameters) => { statements }

• Single-line arrow functions don’t need curly braces or a return statement.

const add = (a, b) => a + b;

• Arrow functions do not have their own this context; they inherit this from the parent scope.

function Person() {
  this.age = 0;
  setInterval(() => {
    this.age++; // `this` refers to the Person instance
  }, 1000);
}
const p = new Person();

• Arrow functions cannot be used with the new keyword.