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docs: Provide a better example for positional arg append #4390

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merged 2 commits into from Oct 14, 2022
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docs: Provide a better example for positional arg append #4390

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e6436a0
docs: Provide a better example for positional arg append
sergejp Oct 14, 2022
3250bce
docs: Provide a better example for positional arg append under derive
sergejp Oct 14, 2022
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7 changes: 5 additions & 2 deletions examples/tutorial_builder/03_03_positional_mult.md
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Expand Up @@ -12,9 +12,12 @@ Options:
-V, --version Print version information

$ 03_03_positional_mult
name: None
names: []

$ 03_03_positional_mult bob
name: Some("bob")
names: ["bob"]

$ 03_03_positional_mult bob john
names: ["bob", "john"]
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```
8 changes: 7 additions & 1 deletion examples/tutorial_builder/03_03_positional_mult.rs
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Expand Up @@ -5,5 +5,11 @@ fn main() {
.arg(Arg::new("name").action(ArgAction::Append))
.get_matches();

println!("name: {:?}", matches.get_one::<String>("name"));
let args = matches
.get_many::<String>("name")
.unwrap_or_default()
.map(|v| v.as_str())
.collect::<Vec<_>>();

println!("names: {:?}", &args);
}