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minor fixes

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Ilya Kantor 2022-04-15 08:05:10 +03:00
parent 0305a0b864
commit 7dc2a3c79d
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1-js/04-object-basics/08-symbol/article.md
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# Symbol type
By specification, object property keys may be either of two primitive types:
By specification, only two primitive types may serve as object property keys:
- string type, or
- symbol type.
Otherwise, if one uses another type, such as number, it's autoconverted to string. So that `obj[1]` is the same as `obj["1"]` and `obj[true]` is the same as `obj["true"]`.
Till now we've been using only strings.
Now let's explore symbols, see what they can do good for us.