What's the difference between a method and a function?

Question

Can someone provide a simple explanation of methods vs. functions in OOP context?

Answer 1

TL;DR

A Function is a piece of code to run.
A Method is a Function inside an Object.

Example of a function:

function sum(){
  console.log("sum")l
}

Example of a Method:

const obj = {
a:1,
b:2,
sum(){
  }
}

So thats why we say that a "this" keyword inside a Function is not very useful unless we use it with call, apply or bind .. because call, apply, bind will call that function as a method inside object ==> basically it converts function to method