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docs: more precise docs for template statement syntax (#34348) 

PR Close #34348
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Georgii Dolzhykov 2019-12-11 14:17:13 +02:00 committed by Miško Hevery
parent bde4cd7982
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aio/content/guide/template-syntax.md
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@ -237,16 +237,15 @@ You're free to change anything, anywhere, during this turn of the event loop.
Like template expressions, template *statements* use a language that looks like JavaScript. Like template expressions, template *statements* use a language that looks like JavaScript.
The template statement parser differs from the template expression parser and The template statement parser differs from the template expression parser and
specifically supports both basic assignment (`=`) and chaining expressions specifically supports both basic assignment (`=`) and chaining expressions with <code>;</code>.
(with <code>;</code> or <code>,</code>).
However, certain JavaScript syntax is not allowed: However, certain JavaScript and template expression syntax is not allowed:
* <code>new</code> * <code>new</code>
* increment and decrement operators, `++` and `--` * increment and decrement operators, `++` and `--`
* operator assignment, such as `+=` and `-=` * operator assignment, such as `+=` and `-=`
* the bitwise operators `|` and `&` * the bitwise operators, such as `|` and `&`
* the [template expression operators](guide/template-syntax#expression-operators) * the [pipe operator](guide/template-syntax#pipe)
### Statement context ### Statement context