class FilesItem extends HTMLTableRowElement {
    constructor() {
        super();
    }
  
    connectedCallback() {
        const col1 = this.getAttribute('text') || '';
        const col2 = this.getAttribute('col2') || '';
        console.log('col1: ' + col1)
        console.log('col2: ' + col2)
        this.innerHTML = `
            <td>${col1}</td>
            <td>${col2}</td>
        `;
    }
}

customElements.define('files-item', FilesItem, { extends: 'tr' });