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minor fixes

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Ilya Kantor 2021-12-13 18:31:16 +03:00
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1-js/02-first-steps/05-types/article.md
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@ -250,7 +250,7 @@ The last three lines may need additional explanation:
```smart header="The `typeof(x)` syntax" ```smart header="The `typeof(x)` syntax"
You may also come across another syntax: `typeof(x)`. It's the same as `typeof x`. You may also come across another syntax: `typeof(x)`. It's the same as `typeof x`.
To put it clear: `typeof` is an operator, not a function. The parentheses here aren't a part of the `typeof`. It's the kind of parentheses used for mathematical grouping. To put it clear: `typeof` is an operator, not a function. The parentheses here aren't a part of `typeof`. It's the kind of parentheses used for mathematical grouping.
Usually, such parentheses contain a mathematical expression, such as `(2 + 2)`, but here they contain only one argument `(x)`. Syntactically, they allow to avoid a space between the `typeof` operator and its argument, and some people like it. Usually, such parentheses contain a mathematical expression, such as `(2 + 2)`, but here they contain only one argument `(x)`. Syntactically, they allow to avoid a space between the `typeof` operator and its argument, and some people like it.