Dev.to
6/19/2026

Types of Functions in JavaScript
Short summary
Comprehensive tutorial covering 12 types of JavaScript functions — from declarations and arrow functions to callbacks, higher-order functions, IIFE, constructors, recursion, and generators. Each concept includes working code examples and relatable analogies. Ideal for beginners building a solid foundation in JavaScript fundamentals and function patterns for code organization.
- •Covers 12 function types with code examples: declarations, expressions, arrows, callbacks, IIFE, generators, and async
- •Uses everyday analogies (washing machines, recipe books, Netflix) to explain abstract JavaScript concepts
- •Practical reference for beginners learning to write organized, reusable code with functions
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