What are advanced factory function techniques in JavaScript?

What are advanced factory function techniques in JavaScript?

Advanced factory function techniques in JavaScript include closures, private variables, and method chaining. Would you like to explore any of these in detail?

Can you explain how closures work in factory functions?

Sure! Closures allow a factory function to maintain private state. When you create a function inside another function, the inner function can access variables from the outer function even after the outer function has finished executing.

How can I implement private variables using factory functions?

You can implement private variables by defining them within the factory function and returning an object with methods that can access those variables. This way, the variables remain hidden from the outside scope.

What is method chaining and how is it used in factory functions?

Method chaining allows you to call multiple methods on the same object in a single statement. In factory functions, you can return 'this' from each method to enable chaining.