43 lines
802 B
Markdown
43 lines
802 B
Markdown
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# Rust code specific features
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## Hiding code lines
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There is a feature in mdBook that let's you hide code lines by prepending them with a `#`.
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```bash
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#fn main() {
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let x = 5;
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let y = 6;
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println!("{}", x + y);
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#}
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```
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Will render as
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```rust
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#fn main() {
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let x = 5;
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let y = 7;
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println!("{}", x + y);
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#}
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```
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## Inserting runnable Rust files
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With the following syntax, you can insert runnable Rust files into your book:
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```hbs
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\{{#playpen file.rs}}
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```
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The path to the Rust file has to be relative from the current source file.
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When play is clicked, the code snippet will be send to the [Rust Playpen]() to be compiled and run. The result is send back and displayed directly underneath the code.
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Here is what a rendered code snippet looks like:
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{{#playpen example.rs}}
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