var body = DocumentApp.getActiveDocument().getActiveTab().asDocumentTab().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);
[[["เข้าใจง่าย","easyToUnderstand","thumb-up"],["แก้ปัญหาของฉันได้","solvedMyProblem","thumb-up"],["อื่นๆ","otherUp","thumb-up"]],[["ไม่มีข้อมูลที่ฉันต้องการ","missingTheInformationINeed","thumb-down"],["ซับซ้อนเกินไป/มีหลายขั้นตอนมากเกินไป","tooComplicatedTooManySteps","thumb-down"],["ล้าสมัย","outOfDate","thumb-down"],["ปัญหาเกี่ยวกับการแปล","translationIssue","thumb-down"],["ตัวอย่าง/ปัญหาเกี่ยวกับโค้ด","samplesCodeIssue","thumb-down"],["อื่นๆ","otherDown","thumb-down"]],["อัปเดตล่าสุด 2024-09-13 UTC"],[[["`ParagraphHeading` enumeration is used to set heading styles for paragraphs in Google Docs."],["You can use properties like `NORMAL`, `HEADING1` to `HEADING6`, `TITLE`, and `SUBTITLE` to define different heading levels."],["The provided code snippet demonstrates how to append paragraphs with different heading styles using `setHeading()` method."],["The table lists all available `ParagraphHeading` properties, their types, and descriptions."]]],[]]