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Design Patterns

Function Factory In JavaScript

A function factory is used to create function objects.

What is Function Factory?

We can have a function works as a factory which creates and returns function. We can return different functions based on parameter of function. As we have a function inside another function so closure is created and inner function will have access to function factory parameter even after it returns. This provides great flexibility for creation of functions.



JavaScript Function Factory - Example Source Code


JavaScript Function Factory - Example Output

Suresh Kumar Srivastava is founder of online learning site and author of popular books "C In Depth", "Data Structures Through C In Depth". He has 18+ years experience in industry and worked on architecture and design of multiple products. This article is from his course on Advanced JavaScript.

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