Module @benneq/validator

This module contains utilities for working with Validators

Example

Validate registration form

const registrationFormValidator = validate(chain(
  objectValidator({
    email: valueValidator(isEmail, "must be am email"),
    password: valueValidator(isSecure, "must be secure"),
  }),
  valueValidator(
    { password, repetition } => password === repetition,
    "passwords must match"
  ),
));

const validationResult = registrationFormValidator(
  {
    email: "a@b.c",
    password: "secure",
    repetition: "",
  }
);

console.log(validationResult);
// [{ path: "$", message: "passwords must match",
//   value: {email: "a@b.c", password: "secure", repetition: "" }
// }]

Example

Validate a complex object

const myValidator = validate(objectValidator({
  name: valueValidator(isString, "must be a string"),
  numbers: arrayValidator(valueValidator(isNumber, "must be a number")),
  tuple: tupleValidator([
    valueValidator(isBoolean, "must be a boolean"),
    valueValidator(isString, "must be a string"),
  ])
}));

const result = myValidator({
  name: "a",
  numbers: [1, 2, 3],
  tuple: [true, ""],
});

console.log(result); // []