Arrow Functions

Arrow functions were introduced in ES6 (ECMAScript 2015). They represent one of the most significant syntax additions in this major update to JavaScript, alongside features like classes, let/const declarations, destructuring, promises, and modules. Arrow functions provide a more concise syntax for writing functions and solve common issues with `this` binding. Before ES6, developers often used function expressions or function declarations with workarounds like `.bind()` or saving `this` to a variable to handle scope issues. Arrow functions quickly became popular after their introduction because they address these pain points while making code more readable, especially for short callback functions and functional programming patterns.