Grokking JavaScript Fundamentals
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JavaScript - Arrow Functions
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Arrow functions, introduced in ES6, provide a concise syntax for writing function expressions. They are particularly useful for short functions and when working with higher-order functions like map(), filter(), and reduce(). Unlike traditional function expressions, arrow functions allow the this context to be lexically bound, meaning this retains the value of the enclosing lexical context.

Syntax

The basic syntax of an arrow function is:

  • Parameters are placed inside the parentheses () and can be omitted if there are no parameters or if there is only one parameter

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