Can you explain the differences between factory functions and constructors in JavaScript?
Sure! Factory functions are regular functions that return an object, while constructors are special functions that create instances of objects using the 'new' keyword.
What are the advantages of using factory functions over constructors?
Factory functions can provide more flexibility, such as returning different types of objects, and they don't require the 'new' keyword, which can prevent some common errors.
Are there any performance differences between the two?
Generally, there isn't a significant performance difference. However, constructors can be slightly faster in creating instances due to optimizations in JavaScript engines.
Can you give me an example of each?
Of course! A factory function might look like this: function createCar(make, model) { return { make, model }; }
. A constructor would be: function Car(make, model) { this.make = make; this.model = model; }
.
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