JavaScript : JavaScript, elegant way to check nested object properties for null/undefined

JavaScript : JavaScript, elegant way to check nested object properties for null/undefined
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As promised, I have a secret feature that I want to reveal to you.
This is a YouTube's feature which works on Desktop.
First, Ensure that the video is playing before proceeding.
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A quick introduction about me,
Hi there, I go by the name of Delphi.
I am willing to help you find the solutions to your questions.
JavaScript : JavaScript, elegant way to check nested object properties for null/undefined
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