ismn validator

// You might need to change the importing path
import ismn from 'formvalidation/dist/es6/validators/ismn';

const result = ismn().validate({
    value: ...,
    options: {
        message: ...,
    },
});
/*
result is an object of
{
    valid: true or false,
    message: The error message
}
*/

// You might need to change the importing path
import ismn from 'formvalidation/dist/es6/validators/ismn';

const res1 = ismn().validate({
    value: 'M230671187',
    options: {
        message: 'The value is not valid ISMN',
    },
});
// res1.valid === true

const res2 = ismn().validate({
    value: '9790060115614',
    options: {
        message: 'The value is not valid ISMN',
    },
});
// res2.valid === false