@nodecfdi/cfdi-cleaner/dist/esm/xml_document_cleaners/collapse_complemento.js

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

import { Mixin } from 'ts-mixer';
import CfdiXPath from '#src/internal/cfdi_x_path';
import XmlElementMethods from '#src/mixins/xml_element_methods';
export default class CollapseComplemento extends Mixin(XmlElementMethods) {
    clean(document) {
        const xpath = CfdiXPath.createFromDocument(document);
        const complementos = xpath.queryElements('/cfdi:Comprobante/cfdi:Complemento');
        if (complementos.length < 2) {
            return;
        }
        let receiver = null;
        for (const complemento of complementos) {
            // First complemento
            if (!receiver) {
                receiver = complemento;
                continue;
            }
            // Non-first complemento
            while (complemento.childNodes.length > 0) {
                const child = complemento.childNodes.item(0);
                this.elementMove(child, receiver);
            }
            this.elementRemove(complemento);
        }
    }
}