Passing Arrow Functions vs Attaching Arrow Functions in JavaScript
Passing Arrow Functions vs Attaching Arrow Functions in JavaScript While learning JavaScript arrow functions, I came across the terms passing an arrow function and attaching an arrow function . At first, these concepts seemed similar, but they describe two different things: Passing a function as a value to another function (callback) Attaching a function to an object as a method This article explains the difference with examples. What are Arrow Functions? Arrow functions were introduced in ES6 (ECMAScript 2015) . They provide a shorter syntax for writing functions. The traditional way of writing a function: function add ( a, b ) { return a + b; } The same function using an arrow function: (a, b) => a + b; Arrow functions are especially useful when working with callbacks because functions in JavaScript can be passed around as values. Passing a Function (Callback Function) Passing a function means giving a function as an argument to another function. function add ( a, b ...