oficial/app/resources/views/layout/body/scripts/rut.blade.php

@push('page_scripts')
    <script>
        class Rut {
            static digitoVerificador(rut) {
                if (!(typeof rut === 'string' || rut instanceof String)) {
                    rut = rut.toString()
                }
                if (rut.length === 0) {
                    return ''
                }
                let M = 0, S = 1
                for (; rut; rut = Math.floor(rut / 10)) {
                    S = (S + rut % 10 * (9 - M++ % 6)) % 11
                }
                return S ? S - 1 : 'K'
            }
            static format(rut) {
                if (!(typeof rut === 'string' || rut instanceof String)) {
                    rut = rut.toString()
                }
                if (rut.length === 0) {
                    return ''
                }
                rut.replace(/\D/g, '')
                return rut.replace(/^(\d{1,2})(\d{3})(\d{3})$/, '$1.$2.$3')
            }
            static validar(rut, digito) {
                if (!(typeof digito === 'string' || digito instanceof String)) {
                    digito = digito.toString()
                }
                return Rut.digitoVerificador(rut).toString().toUpperCase() === digito.toUpperCase()
            }
        }
    </script>
@endpush