How to use the custom function from joi

Find comprehensive JavaScript joi.custom code examples handpicked from public code repositorys.

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};


function condition(fun, then, otherwise) {
  return Joi.alternatives().conditional(
    Joi.ref('.'), {
      is: Joi.custom((value, helper) => (fun(value) ? value : helper.message({}))),
      then,
      otherwise
    }
  );
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