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Dev.to
7/24/2026
The original title is: "Types of Functions in JavaScript — Differences Explained with Examples"

The original title is: "Types of Functions in JavaScript — Differences Explained with Examples"

Original: Types of Functions in JavaScript — Differences Explained with Examples

Short summary

A comprehensive guide covering seven ways to define functions in JavaScript: declarations, expressions, arrow functions, object methods, constructors, generators, async functions, and IIFEs. Each type is explained with code examples and key traits around hoisting, this binding, arguments object, and constructor compatibility. Includes a comparison table and interview gotchas for quick reference.

  • •Covers 7 JavaScript function types with code examples and key behavioral differences
  • •Highlights hoisting, this binding, arguments, and constructor compatibility for each type
  • •Includes interview gotchas and a quick comparison table

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