TypeScript - ES6 - arrow functions

In ES6, arrow functions were introduced.

Consider the following function to multiply two numbers.

console.log("Arrow functions Demo");

console.log("+++++++++++++++++++++");

const multNumbers = function(number1:number, number2:number): number {

return number1 * number2;

}

this is the traditional method to define functions.

Now, the ES6 way of defining arrow functions are as follows:

console.log("Add Numbers:");

const addMyNumbers = (number1:number, number2:number) => (number1+number2);

console.log("addMyNumbers(4,5) == "+addMyNumbers(4,5));

This is called arrow functions because we use the arrow operator to point to the function body.

Reference:
https://www.typescriptlang.org/docs/handbook/functions.html