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JavaScript JavaScript Basics (Retired) Storing and Tracking Information with Variables Working with Strings and Finding Help

Posted by Benjamin Hedgepeth
Benjamin Hedgepeth
5,672 Points

Breaking down - String.prototype.toLowerCase()

Although it is mentioned that the .toLowerCase() method is applied to the object I still want to understand the "String.prototype" portion.

While researching this I found this website: https://adamscheller.com/javascript/prototypes-in-javascript-tutorial/

From what I comprehended, prototype is an object for which sets the baseline standard (or rules) from which compatible objects are derived from?

Is that correct?

1 Answer

Seth Kroger
Seth Kroger
56,414 Points
Seth Kroger
Seth Kroger
56,414 Points

You'll be going over prototypes when you get to Object-Oriented JavaScript which is a few courses down the track. JavaScript uses prototype-based inheritance, where new objects inherit methods from another concrete object instead of an abstract class. When an object doesn't have a requested method itself, it delegates to it's prototype (and it's prototype, and so on) until it finds that method. This is why methods in MDN usually have .prototype., because it's the technically correct way they're defined.