A method is a function which is a property of an object. There are two kinds of methods: instance methods which are built-in tasks performed by an object instance, or static methods which are tasks that are called directly on an object constructor.
F is said to be a method of
O, it often means that
O as its
this binding. Function properties that do not have different behaviors based on their
this value (or those that don't have a dynamic
this binding at all — like bound functions and arrow functions) may not be universally recognized as methods.