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Mention empty curlies #228

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merged 2 commits into from
Sep 30, 2024
Merged

Mention empty curlies #228

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a0a1c40
Mention empty curlies
hadley Sep 30, 2024
99340b2
Add another negative example
hadley Sep 30, 2024
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8 changes: 8 additions & 0 deletions syntax.Rmd
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Original file line number Diff line number Diff line change
Expand Up @@ -290,6 +290,8 @@ hierarchy easy to see:

* `}` should be the first character on the line.

It is occassionally useful to have an empty curly braces block, in which case it should be written `{}`.

```{r, eval = FALSE}
# Good
if (y < 0 && debug) {
Expand Down Expand Up @@ -320,6 +322,8 @@ tryCatch(
}
)

while (waiting_for_something()) {}

# Bad
if (y < 0 && debug) {
message("Y is negative")
Expand All @@ -333,6 +337,10 @@ if (y == 0)
message("x is negative or zero")
}
} else { y ^ x }

while (waiting_for_something()) {
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Maybe clarify { } is also discouraged?

while (waiting_for_something()) { }


}
```

### If statements
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