Ликбез: чем различаются var, let и const в JavaScript
В JavaScript есть var — с его помощью можно объявить переменную. Ещё есть let — и с ним тоже можно объявить переменную. А ещё есть const — формально он не про переменные, а про константы, но там тоже не всё так просто.
Короче, разбираемся, чем var, let и const отличаются друг от друга.
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