I have listed some useful articles you may need when you are going to work with Javascript Object
Two ways to create Javascript Object
If you want to pass js object as a parameter please read this
How to compare two objects in Javascript
Prototype property in JS Object
List all properties of a Javascript Object
Check Given Property is Own Property of an Object in Javascript
Add Method to Built-in Javascript Object
Get the first and last element
Javascript Higher Order functions
https://www.youtube.com/watch?v=BMUiFMZr7vk&list=PL0zVEGEvSaeEd9hlmCXrk5yUyqUag-n84&index=2&t=0s