requiredUnless rule (v3)

Require a field unless another field already has a value.

Since: 2.3.0
Signature: requiredUnless(input, otherInput)
Options: 1

Usage

bootstrapValidate('#input', 'requiredUnless:#secondaryEmail:Enter at least one email address')

Options

Name	Description	Example
`otherInput`	string: Selector for the field that can satisfy the requirement.	`#secondaryEmail`

Live Example

Value

Checking...

Source

/**
 * @since 2.3.0
 * @example #secondaryEmail
 * @error Enter at least one email address
 * @param otherInput string: Selector for the field that can satisfy the requirement.
 * @description Require a field unless another field already has a value.
 */
export default function requiredUnless(input: RuleInput, otherInput: RuleOption) {
  const resolvedInput = document.querySelector(String(otherInput)) as RuleInput | null;
  return Boolean(input.value.length || resolvedInput?.value.length);
}