26 lines
677 B
Markdown
26 lines
677 B
Markdown
---
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layout: default
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title: Feature Flags
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nav_order: 5
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permalink: /features/
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---
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# Feature Flags and Optional Dependencies
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Some functionality can be selectively enabled/disabled via [Cargo features](https://doc.rust-lang.org/cargo/reference/manifest.html#the-features-section). These can be enabled when you add Schemars to your crate's cargo.toml, e.g.
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```toml
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[dependencies]
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schemars = { version = "0.6", features = ["chrono"] }
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```
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<div class="indented">
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### derive_json_schema
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Implements `JsonSchema` on Schemars types themselves.
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### chrono
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Implements `JsonSchema` on all [Chrono](https://github.com/chronotope/chrono) types which are serializable by Serde.
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</div>
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