docx-js/src/file/paragraph/properties.ts

// http://officeopenxml.com/WPparagraphProperties.php
import { XmlComponent } from "file/xml-components";

export class ParagraphProperties extends XmlComponent {

    constructor() {
        super("w:pPr");
    }

    public push(item: XmlComponent): void {
        this.root.push(item);
    }
}