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647Method Shorthand Syntax in Object Literals
648Methods vs Function Properties
649How 'this' Works in Method Calls
650Losing 'this' Context
651Arrow Functions in Methods
652Extracting Methods as Standalone Functions
653Preserving 'this' with Bind
654Using Arrow Functions as Callbacks
655The 'self' Pattern
656Method Chaining and Returning 'this'
657Common Method 'this' Pitfalls
658What Are Getters and Setters?
659Defining Getters with the 'get' Keyword
660Defining Setters with the 'set' Keyword
661Getters Return Values, Setters Accept One Parameter
662Storing Data in Private Properties
663Using Getters for Computed Properties
664Using Setters for Validation
665Object.defineProperty for Dynamic Getters/Setters
666Getters and Setters in Classes
667When to Use Getters/Setters vs Plain Properties
668What Are Factory Functions?
669Basic Factory Function Pattern
670Private State with Closures
671Factory Functions vs Constructor Functions
672Passing Configuration Objects
673Returning Multiple Methods
674Composition with Factory Functions
675When to Use Factory Functions
676Performance Considerations
677What is JSON?
678JSON Syntax Rules
679JSON.stringify Basics
680JSON.parse Basics
681Serialization Edge Cases
682The Replacer Parameter
683The Reviver Parameter
684Pretty-Printing with Space
685ToJSON Method
686Deep Cloning with JSON
687JSON vs JavaScript Objects
688Common JSON Mistakes
689Why Object Cloning Matters
690Shallow Clone with Object Spread
691Shallow Clone with Object.assign
692The Deep Clone Problem
693Deep Clone with structuredClone
694structuredClone Limitations
695Manual Deep Clone Strategies
696Choosing the Right Clone Strategy

647Method Shorthand Syntax in Object Literals
648Methods vs Function Properties
649How 'this' Works in Method Calls
650Losing 'this' Context
651Arrow Functions in Methods
652Extracting Methods as Standalone Functions
653Preserving 'this' with Bind
654Using Arrow Functions as Callbacks
655The 'self' Pattern
656Method Chaining and Returning 'this'
657Common Method 'this' Pitfalls
658What Are Getters and Setters?
659Defining Getters with the 'get' Keyword
660Defining Setters with the 'set' Keyword
661Getters Return Values, Setters Accept One Parameter
662Storing Data in Private Properties
663Using Getters for Computed Properties
664Using Setters for Validation
665Object.defineProperty for Dynamic Getters/Setters
666Getters and Setters in Classes
667When to Use Getters/Setters vs Plain Properties
668What Are Factory Functions?
669Basic Factory Function Pattern
670Private State with Closures
671Factory Functions vs Constructor Functions
672Passing Configuration Objects
673Returning Multiple Methods
674Composition with Factory Functions
675When to Use Factory Functions
676Performance Considerations
677What is JSON?
678JSON Syntax Rules
679JSON.stringify Basics
680JSON.parse Basics
681Serialization Edge Cases
682The Replacer Parameter
683The Reviver Parameter
684Pretty-Printing with Space
685ToJSON Method
686Deep Cloning with JSON
687JSON vs JavaScript Objects
688Common JSON Mistakes
689Why Object Cloning Matters
690Shallow Clone with Object Spread
691Shallow Clone with Object.assign
692The Deep Clone Problem
693Deep Clone with structuredClone
694structuredClone Limitations
695Manual Deep Clone Strategies
696Choosing the Right Clone Strategy

Lesson 669 of 2,723·16. Object Methods and PatternsPro lesson

Basic Factory Function Pattern

Write your first factory function that returns an object with properties and methods.

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