import * as Yup from "yup";
import "yup-phone";

// validate any phone number (defaults to India for country)
const phoneSchema = Yup.string()
  .phone()
  .required();

(async () => {
  console.log(await phoneSchema.isValid("9876543210")); // → true
})();

import * as Yup from "yup";
import "yup-phone";

// validate phone number loosely in the given region
const phoneSchema = Yup.string()
  .phone("IN")
  .required();

(async () => {
  console.log(await phoneSchema.isValid('+919876543210')); // → true
})();

import * as Yup from "yup";
import "yup-phone";

// validate phone number strictly in the given region
const phoneSchema = Yup.string()
  .phone("IN", true)
  .required();

console.log(phoneSchema.isValidSync("+919876543210")); // → true