A method is a function that is a member of an object. A property is a value or set of values (in the form of an array or object) that is a member of an object. JavaScript supports four kinds of objects: Intrinsic objects, such as Array and String. Objects you create. Host objects, such as window and document.
Definition of reductive for English Language Learners. : dealing with or describing something complicated in a simple or too simple way.
Definition of redundancy for English Language Learners : the act of using a word, phrase, etc., that repeats something else and is therefore unnecessary : a word, phrase, etc., that repeats something else and is therefore unnecessary : a redundant word, phrase, etc.