Symbol is the 7th primitive type in JavaScript after number, string, object, boolean, null and undefined. Symbols are unique identifiers that have descriptors. Symbols can avoid naming collisions. We cannot loop over symbols.
const FirstTestSymbol = Symbol('MySymbol');
const SecondTestSymbol = Symbol('MySymbol');
FirstTestSymbol === SecondTestSymbol; //returns false
FirstTestSymbol == SecondTestSymbol; //returns falsePeace ✌️