Add missing catch statements in BigQuery samples.

Author: jmdobry

bigquery/queries.js

@@ -65,6 +65,9 @@ function queryShakespeare (projectId) {
  .then((results) => {
  const rows = results[0];
  printResult(rows);
+ })
+ .catch((err) => {
+ console.error('ERROR:', err);
  });
 }
 // [END bigquery_simple_app_query]
@@ -97,6 +100,9 @@ function syncQuery (sqlQuery, projectId) {
  const rows = results[0];
  console.log('Rows:');
  rows.forEach((row) => console.log(row));
+ })
+ .catch((err) => {
+ console.error('ERROR:', err);
  });
  // [END bigquery_sync_query]
 }
@@ -138,6 +144,9 @@ function asyncQuery (sqlQuery, projectId) {
  const rows = results[0];
  console.log('Rows:');
  rows.forEach((row) => console.log(row));
+ })
+ .catch((err) => {
+ console.error('ERROR:', err);
  });
  // [END bigquery_async_query]
 }