JavaScript is a popular programming language used in building modern web applications. It has evolved tremendously over the years and introduced many new features to improve usability and efficiency.

Before ES6, JavaScript had a more verbose syntax for defining functions, especially for short, anonymous functions used as callbacks. ES6 introduced arrow functions as a more elegant and concise ...

In JavaScript, an arrow function is a concise way to write function expressions. It provides a more compact syntax compared to traditional function declarations and expressions.