Скачать или смотреть R : Fast way to flatten a list of list while only keeping the 1st element in each sublist

R : Fast way to flatten a list of list while only keeping the 1st element in each sublist
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On Google, Search for "hows tech developer connect"

I promised to share a hidden feature with you, and here it is.
This is a YouTube's feature which works on Desktop.
First, Ensure that the video is playing before proceeding.
Then, type the letters 'awesome' on the keyboard.
Your YouTube progress bar will transform into a flashing rainbow.

A quick introduction about me,
Hey, I'm known as Delphi.
I am here to aid you in getting answers to your questions.
R : Fast way to flatten a list of list while only keeping the 1st element in each sublist
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