A symbol is a unique and immutable data type and may be used as an identifier for object properties. The symbol object is an implicit object wrapper for the symbol primitive data type.
Q: When should I try to use symbols?
Q: are there any good patterns for using symbols?
Q: why do you think symbols were included in ES6?
Q: where or which language did the idea of symbols originate?
Q: why should I care about symbols?
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