https://stackoverflow.com/a/3550319/8252883

Hi, I followed the link and I saw that the accepted answer is comparing to undefined.
2
Zohar
Shuai Li
·Follow
Feb 6, 2022
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https://stackoverflow.com/a/3550319/8252883
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Written by Shuai Li8K Followers
·98 Following
An enthusiastic game player of Earth Online.
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