Google Apps Script API
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    An enumeration of the standard paragraph headings.

    Use the ParagraphHeading enumeration to configure the heading style for ParagraphElement.

    var body = DocumentApp.getActiveDocument().getBody();
    
    // Append a paragraph, with heading 1.
    var par1 = body.appendParagraph("Title");
    par1.setHeading(DocumentApp.ParagraphHeading.HEADING1);
    
    // Append a paragraph, with heading 2.
    var par2 = body.appendParagraph("SubTitle");
    par2.setHeading(DocumentApp.ParagraphHeading.HEADING2);
    
    // Append a paragraph, with normal heading.
    var par3 = body.appendParagraph("Text");
    par3.setHeading(DocumentApp.ParagraphHeading.NORMAL);
    
    Index

    Enumeration Members

    HEADING1: number
    HEADING2: number
    HEADING3: number
    HEADING4: number
    HEADING5: number
    HEADING6: number
    NORMAL: number
    SUBTITLE: number
    TITLE: number