JaKXz

function onOpen() {
  // get the proparties we need to work with
  var doc = DocumentApp.getActiveDocument();
  var body = doc.getBody();
  var tables = body.getTables();
  
  // find the last table [since there's more than one somehow]
  var table = tables[tables.length - 1];
  var rows = table.getNumRows();
  

JaKXz

{
  "name": "nyc-ava-test",
  "version": "1.0.0",
  "description": "",
  "main": "say.js",
  "scripts": {
    "test": "npm run test:node-tap && npm run test:ava && npm run test:node-tap:coverage && npm run test:ava:coverage",
    "test:node-tap": "tap test-node-tap.js",
    "test:ava": "ava test-ava.js",
    "test:node-tap:coverage": "tap test-node-tap.js --coverage-report=text",