regle-rules

# Regle Rules Validation rules for Regle. Rules come from `@regle/rules`, but you can also write your own with `createRule`, customize them with wrappers, and combine them with operators. ```ts import { useRegle } from '@regle/core'; import { required, email, minLength } from '@regle/rules'; const { r$ } = useRegle( { email: '' }, { email: { required, email, minLength: minLength(5) } } ); ``` ## Key Concepts - All rules are optional by default; add `required` to enforce a field. - Built-in rules are imported from `@regle/rules`; some are factories that take parameters (e.g. `minLength(3)`). - Custom rules use `createRule` for reusability, or an inline function for one-offs. - Wrappers adapt an existing rule (message, params, async, tooltip) without rewriting it. - Operators combine or conditionally apply rules. ## References | Topic | Description | Reference | |-------|-------------|-----------| | Built-in Rules | All validation rules from `@regle/rules` | [rules-built-in](references/rules-built-in.md) | | Custom Rules | Inline rules, `createRule`, reactive parameters, async rules, metadata | [rules-custom](references/rules-custom.md) | | Rule Wrappers | `withMessage`, `withParams`, `withAsync`, `withTooltip`, chaining | [rules-wrappers](references/rules-wrappers.md) | | Rule Operators | `and`, `or`, `xor`, `not`, `applyIf`, `assignIf`, `pipe` | [rules-operators](references/rules-operators.md) | ## Related skills - **regle** — form setup with `useRegle`, validation properties, displaying errors, modifiers. - **regle-typescript** — typing rules schemas with `inferRules` and `RegleComputedRules`.