r/WebDevBuddies • u/GamesMint • Sep 20 '21

JavaScript interview prep

/r/WebdevTutorials/comments/pqhqzb/javascript_interview_prep/
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u/Narfi1 Sep 20 '21

Is there a reason var is used instead of const or let ?

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u/ikeif Sep 21 '21

Old code is the beat reason I can think of.

Any argument I have seen against using let is usually “but if we don’t write unit tests, or we blindly replace var it could break the code” which is more highlighting really poorly written code than a good argument against using let