@nodecfdi/cfdi-cleaner/dist/esm/xml_string_cleaners/remove_non_xml_strings.js

Librería para limpiar comprobantes fiscales digitales v3.3 y v4.0

export default class RemoveNonXmlStrings {
    clean(xml) {
        const posFirstLessThan = xml.indexOf('<');
        if (posFirstLessThan === -1) {
            return '';
        }
        const posLastGreaterThan = xml.lastIndexOf('>');
        if (posLastGreaterThan === -1) {
            return '';
        }
        const length = posLastGreaterThan - posFirstLessThan + 1;
        if (length <= 0) {
            return '';
        }
        return xml.slice(posFirstLessThan, posFirstLessThan + length);
    }
}