What field to validate.
<input use:validate={{ at: 'email' }}>
If at
is not provided and the element is not a form it defaults to:
pathAt
name
attributefor
attributeid
attributeIf the only option is at
it can be used directly:
<input use:validate={'email'}>
If no field has been found it validates itself and all its children.
Timeout in milliseconds after which a validation should start.
Override which events should mark a field as dirty.
Override which events should trigger a validation and mark a field as dirty.
Override which events should trigger a validation.
<input use:validate={{ validateOn: ['input', 'change'] }}>
<input use:validate={{ validateOn: 'blur' }}>
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Options for FormupContext.validate.