Why are objects copied by reference in JavaScript (visualized)

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3dCodeWorld is for the visual learner who is frustrated with their progress in learning JavaScript. I believe that coding can be taught in a better way through the use of 3D models and other visual tools. There will be no code-along tutorials on this channel, where you watch somebody else code. I will instead be uploading visual presentations with carefully selected snippets of code that illustrate a concept. We will always explain how things work and why they work.