| -- frontmatter.toml -- | |
| title = "Boilerplate" | |
| description = "" | |
| draft = true | |
| -- text.md -- | |
| Constraints specify what values are allowed. | |
| To CUE they are just values like anything else, | |
| but conceptually they can be explained as something in between types and | |
| concrete values. | |
| Constraints can be used to validate values of concrete instances. | |
| They can be applied to CUE data, or directly to YAML or JSON. | |
| But constraints can also reduce boilerplate. | |
| If a constraints defines a concrete value, there is no need | |
| to specify it in values to which this constraint applies. |