diff --git a/translate/v3/translate_batch_translate_text.js b/translate/v3/translate_batch_translate_text.js
index c6107327ad3..196fa3422ec 100644
--- a/translate/v3/translate_batch_translate_text.js
+++ b/translate/v3/translate_batch_translate_text.js
@@ -55,26 +55,26 @@ function main(
       },
     };
 
-    try {
-      const options = {timeout: 180000};
-      // Batch translate text using a long-running operation
-      const [operation] = await translationClient.batchTranslateText(
-        request,
-        options
-      );
+    const options = {timeout: 240000};
+    // Batch translate text using a long-running operation
+    const [operation] = await translationClient.batchTranslateText(
+      request,
+      options
+    );
 
-      // Wait for operation to complete.
-      const [response] = await operation.promise();
+    // Wait for operation to complete.
+    const [response] = await operation.promise();
 
-      console.log(`Total Characters: ${response.totalCharacters}`);
-      console.log(`Translated Characters: ${response.translatedCharacters}`);
-    } catch (error) {
-      console.error(error.details);
-    }
+    console.log(`Total Characters: ${response.totalCharacters}`);
+    console.log(`Translated Characters: ${response.translatedCharacters}`);
   }
 
   batchTranslateText();
   // [END translate_v3_batch_translate_text]
 }
 
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
 main(...process.argv.slice(2));
diff --git a/translate/v3/translate_batch_translate_text_with_glossary.js b/translate/v3/translate_batch_translate_text_with_glossary.js
index 2bfeb2888e5..cd9b65e0d24 100644
--- a/translate/v3/translate_batch_translate_text_with_glossary.js
+++ b/translate/v3/translate_batch_translate_text_with_glossary.js
@@ -62,24 +62,24 @@ function main(
       },
     };
 
-    try {
-      const options = {timeout: 180000};
-      // Create a job using a long-running operation
-      const [operation] = await client.batchTranslateText(request, options);
+    const options = {timeout: 240000};
+    // Create a job using a long-running operation
+    const [operation] = await client.batchTranslateText(request, options);
 
-      // Wait for the operation to complete
-      const [response] = await operation.promise();
+    // Wait for the operation to complete
+    const [response] = await operation.promise();
 
-      // Display the translation for each input text provided
-      console.log(`Total Characters: ${response.totalCharacters}`);
-      console.log(`Translated Characters: ${response.translatedCharacters}`);
-    } catch (error) {
-      console.error(error.details);
-    }
+    // Display the translation for each input text provided
+    console.log(`Total Characters: ${response.totalCharacters}`);
+    console.log(`Translated Characters: ${response.translatedCharacters}`);
   }
 
   batchTranslateTextWithGlossary();
   // [END translate_v3_batch_translate_text_with_glossary]
 }
 
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
 main(...process.argv.slice(2));
diff --git a/translate/v3/translate_batch_translate_text_with_glossary_and_model.js b/translate/v3/translate_batch_translate_text_with_glossary_and_model.js
index b208ea92882..802826c6752 100644
--- a/translate/v3/translate_batch_translate_text_with_glossary_and_model.js
+++ b/translate/v3/translate_batch_translate_text_with_glossary_and_model.js
@@ -67,24 +67,24 @@ function main(
       },
     };
 
-    try {
-      const options = {timeout: 180000};
-      // Create a job using a long-running operation
-      const [operation] = await client.batchTranslateText(request, options);
+    const options = {timeout: 240000};
+    // Create a job using a long-running operation
+    const [operation] = await client.batchTranslateText(request, options);
 
-      // Wait for operation to complete
-      const [response] = await operation.promise();
+    // Wait for operation to complete
+    const [response] = await operation.promise();
 
-      // Display the translation for each input text provided
-      console.log(`Total Characters: ${response.totalCharacters}`);
-      console.log(`Translated Characters: ${response.translatedCharacters}`);
-    } catch (error) {
-      console.error(error.details);
-    }
+    // Display the translation for each input text provided
+    console.log(`Total Characters: ${response.totalCharacters}`);
+    console.log(`Translated Characters: ${response.translatedCharacters}`);
   }
 
   batchTranslateTextWithGlossaryAndModel();
   // [END translate_v3_batch_translate_text_with_glossary_and_model]
 }
 
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
 main(...process.argv.slice(2));
diff --git a/translate/v3/translate_batch_translate_text_with_model.js b/translate/v3/translate_batch_translate_text_with_model.js
index 9e2c0db7635..69f7b49a0aa 100644
--- a/translate/v3/translate_batch_translate_text_with_model.js
+++ b/translate/v3/translate_batch_translate_text_with_model.js
@@ -60,24 +60,24 @@ function main(
       },
     };
 
-    try {
-      const options = {timeout: 180000};
-      // Create a job using a long-running operation
-      const [operation] = await client.batchTranslateText(request, options);
+    const options = {timeout: 240000};
+    // Create a job using a long-running operation
+    const [operation] = await client.batchTranslateText(request, options);
 
-      // Wait for the operation to complete
-      const [response] = await operation.promise();
+    // Wait for the operation to complete
+    const [response] = await operation.promise();
 
-      // Display the translation for each input text provided
-      console.log(`Total Characters: ${response.totalCharacters}`);
-      console.log(`Translated Characters: ${response.translatedCharacters}`);
-    } catch (error) {
-      console.error(error.details);
-    }
+    // Display the translation for each input text provided
+    console.log(`Total Characters: ${response.totalCharacters}`);
+    console.log(`Translated Characters: ${response.translatedCharacters}`);
   }
 
   batchTranslateTextWithModel();
   // [END translate_v3_batch_translate_text_with_model]
 }
 
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
 main(...process.argv.slice(2));
diff --git a/translate/v3/translate_create_glossary.js b/translate/v3/translate_create_glossary.js
index f59300a1c92..b7ccf7ed0f6 100644
--- a/translate/v3/translate_create_glossary.js
+++ b/translate/v3/translate_create_glossary.js
@@ -53,24 +53,22 @@ function main(
       glossary: glossary,
     };
 
-    try {
-      // Create glossary using a long-running operation
-      const [operation] = await translationClient.createGlossary(request);
+    // Create glossary using a long-running operation
+    const [operation] = await translationClient.createGlossary(request);
 
-      // Wait for the operation to complete
-      await operation.promise();
+    // Wait for the operation to complete
+    await operation.promise();
 
-      console.log('Created glossary:');
-      console.log(
-        `InputUri ${request.glossary.inputConfig.gcsSource.inputUri}`
-      );
-    } catch (error) {
-      console.error(error.details);
-    }
+    console.log('Created glossary:');
+    console.log(`InputUri ${request.glossary.inputConfig.gcsSource.inputUri}`);
   }
 
   createGlossary();
   // [END translate_v3_create_glossary]
 }
 
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
 main(...process.argv.slice(2));
diff --git a/translate/v3/translate_delete_glossary.js b/translate/v3/translate_delete_glossary.js
index 613256d5108..270515a79cc 100644
--- a/translate/v3/translate_delete_glossary.js
+++ b/translate/v3/translate_delete_glossary.js
@@ -40,21 +40,21 @@ function main(
       name: `projects/${projectId}/locations/${location}/glossaries/${glossaryId}`,
     };
 
-    try {
-      // Delete glossary using a long-running operation
-      const [operation] = await translationClient.deleteGlossary(request);
+    // Delete glossary using a long-running operation
+    const [operation] = await translationClient.deleteGlossary(request);
 
-      // Wait for operation to complete.
-      const [response] = await operation.promise();
+    // Wait for operation to complete.
+    const [response] = await operation.promise();
 
-      console.log(`Deleted glossary: ${response.name}`);
-    } catch (error) {
-      console.error(error.details);
-    }
+    console.log(`Deleted glossary: ${response.name}`);
   }
 
   deleteGlossary();
   // [END translate_v3_delete_glossary]
 }
 
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
 main(...process.argv.slice(2));
diff --git a/translate/v3/translate_detect_language.js b/translate/v3/translate_detect_language.js
index e9877f6c3b0..907a9322c39 100644
--- a/translate/v3/translate_detect_language.js
+++ b/translate/v3/translate_detect_language.js
@@ -40,17 +40,13 @@ function main(
       content: text,
     };
 
-    try {
-      // Run request
-      const [response] = await translationClient.detectLanguage(request);
-
-      console.log('Detected Languages:');
-      for (const language of response.languages) {
-        console.log(`Language Code: ${language.languageCode}`);
-        console.log(`Confidence: ${language.confidence}`);
-      }
-    } catch (error) {
-      console.error(error.details);
+    // Run request
+    const [response] = await translationClient.detectLanguage(request);
+
+    console.log('Detected Languages:');
+    for (const language of response.languages) {
+      console.log(`Language Code: ${language.languageCode}`);
+      console.log(`Confidence: ${language.confidence}`);
     }
   }
 
@@ -58,4 +54,8 @@ function main(
   // [END translate_v3_detect_language]
 }
 
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
 main(...process.argv.slice(2));
diff --git a/translate/v3/translate_get_glossary.js b/translate/v3/translate_get_glossary.js
index 7d030c1c7d6..e94d4f64942 100644
--- a/translate/v3/translate_get_glossary.js
+++ b/translate/v3/translate_get_glossary.js
@@ -40,18 +40,18 @@ function main(
       name: `projects/${projectId}/locations/${location}/glossaries/${glossaryId}`,
     };
 
-    try {
-      // Get glossary
-      const [response] = await translationClient.getGlossary(request);
-
-      console.log(`Got glossary: ${response.name}`);
-    } catch (error) {
-      console.error(error.details);
-    }
+    // Get glossary
+    const [response] = await translationClient.getGlossary(request);
+
+    console.log(`Got glossary: ${response.name}`);
   }
 
   getGlossary();
   // [END translate_v3_get_glossary]
 }
 
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
 main(...process.argv.slice(2));
diff --git a/translate/v3/translate_get_supported_languages.js b/translate/v3/translate_get_supported_languages.js
index ef26f9a86d7..63ccbbbffb9 100644
--- a/translate/v3/translate_get_supported_languages.js
+++ b/translate/v3/translate_get_supported_languages.js
@@ -34,25 +34,21 @@ function main(projectId = 'YOUR_PROJECT_ID', location = 'global') {
       parent: `projects/${projectId}/locations/${location}`,
     };
 
-    try {
-      // Get supported languages
-      const [response] = await translationClient.getSupportedLanguages(request);
-
-      for (const language of response.languages) {
-        // Supported language code, generally consisting of its ISO 639-1 identifier, for
-        // example, 'en', 'ja'. In certain cases, BCP-47 codes including language and
-        // region identifiers are returned (for example, 'zh-TW' and 'zh-CN')
-        console.log(`Language - Language Code: ${language.languageCode}`);
-        // Human readable name of the language localized in the display language specified
-        // in the request.
-        console.log(`Language - Display Name: ${language.displayName}`);
-        // Can be used as source language.
-        console.log(`Language - Support Source: ${language.supportSource}`);
-        // Can be used as target language.
-        console.log(`Language - Support Target: ${language.supportTarget}`);
-      }
-    } catch (error) {
-      console.error(error.details);
+    // Get supported languages
+    const [response] = await translationClient.getSupportedLanguages(request);
+
+    for (const language of response.languages) {
+      // Supported language code, generally consisting of its ISO 639-1 identifier, for
+      // example, 'en', 'ja'. In certain cases, BCP-47 codes including language and
+      // region identifiers are returned (for example, 'zh-TW' and 'zh-CN')
+      console.log(`Language - Language Code: ${language.languageCode}`);
+      // Human readable name of the language localized in the display language specified
+      // in the request.
+      console.log(`Language - Display Name: ${language.displayName}`);
+      // Can be used as source language.
+      console.log(`Language - Support Source: ${language.supportSource}`);
+      // Can be used as target language.
+      console.log(`Language - Support Target: ${language.supportTarget}`);
     }
   }
 
@@ -60,4 +56,8 @@ function main(projectId = 'YOUR_PROJECT_ID', location = 'global') {
   // [END translate_v3_get_supported_languages]
 }
 
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
 main(...process.argv.slice(2));
diff --git a/translate/v3/translate_get_supported_languages_for_target.js b/translate/v3/translate_get_supported_languages_for_target.js
index a44165c531d..d37cc0984f9 100644
--- a/translate/v3/translate_get_supported_languages_for_target.js
+++ b/translate/v3/translate_get_supported_languages_for_target.js
@@ -35,25 +35,21 @@ function main(projectId = 'YOUR_PROJECT_ID', location = 'global') {
       displayLanguageCode: 'en',
     };
 
-    try {
-      // Get supported languages
-      const [response] = await translationClient.getSupportedLanguages(request);
+    // Get supported languages
+    const [response] = await translationClient.getSupportedLanguages(request);
 
-      for (const language of response.languages) {
-        // Supported language code, generally consisting of its ISO 639-1 identifier, for
-        // example, 'en', 'ja'. In certain cases, BCP-47 codes including language and
-        // region identifiers are returned (for example, 'zh-TW' and 'zh-CN')
-        console.log(`Language - Language Code: ${language.languageCode}`);
-        // Human readable name of the language localized in the display language specified
-        // in the request.
-        console.log(`Language - Display Name: ${language.displayName}`);
-        // Can be used as source language.
-        console.log(`Language - Support Source: ${language.supportSource}`);
-        // Can be used as target language.
-        console.log(`Language - Support Target: ${language.supportTarget}`);
-      }
-    } catch (error) {
-      console.error(error.details);
+    for (const language of response.languages) {
+      // Supported language code, generally consisting of its ISO 639-1 identifier, for
+      // example, 'en', 'ja'. In certain cases, BCP-47 codes including language and
+      // region identifiers are returned (for example, 'zh-TW' and 'zh-CN')
+      console.log(`Language - Language Code: ${language.languageCode}`);
+      // Human readable name of the language localized in the display language specified
+      // in the request.
+      console.log(`Language - Display Name: ${language.displayName}`);
+      // Can be used as source language.
+      console.log(`Language - Support Source: ${language.supportSource}`);
+      // Can be used as target language.
+      console.log(`Language - Support Target: ${language.supportTarget}`);
     }
   }
 
@@ -61,4 +57,8 @@ function main(projectId = 'YOUR_PROJECT_ID', location = 'global') {
   // [END translate_v3_get_supported_languages_for_target]
 }
 
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
 main(...process.argv.slice(2));
diff --git a/translate/v3/translate_list_codes.js b/translate/v3/translate_list_codes.js
index fe366fc90cb..fc1ce704c3e 100644
--- a/translate/v3/translate_list_codes.js
+++ b/translate/v3/translate_list_codes.js
@@ -34,16 +34,12 @@ function main(projectId = 'YOUR_PROJECT_ID', location = 'global') {
       parent: `projects/${projectId}/locations/${location}`,
     };
 
-    try {
-      // Run request
-      const [response] = await translationClient.getSupportedLanguages(request);
-
-      console.log('Supported languages:');
-      for (const language of response.languages) {
-        console.log(`Language Code: ${language.languageCode}`);
-      }
-    } catch (error) {
-      console.error(error.details);
+    // Run request
+    const [response] = await translationClient.getSupportedLanguages(request);
+
+    console.log('Supported languages:');
+    for (const language of response.languages) {
+      console.log(`Language Code: ${language.languageCode}`);
     }
   }
 
@@ -51,4 +47,8 @@ function main(projectId = 'YOUR_PROJECT_ID', location = 'global') {
   // [END translate_v3_list_codes]
 }
 
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
 main(...process.argv.slice(2));
diff --git a/translate/v3/translate_list_glossary.js b/translate/v3/translate_list_glossary.js
index 96485eaf696..8aacfb2bf15 100644
--- a/translate/v3/translate_list_glossary.js
+++ b/translate/v3/translate_list_glossary.js
@@ -34,20 +34,16 @@ function main(projectId = 'YOUR_PROJECT_ID', location = 'us-central1') {
       parent: `projects/${projectId}/locations/${location}`,
     };
 
-    try {
-      // Run request
-      const [response] = await translationClient.listGlossaries(request);
-
-      for (const glossary of response) {
-        console.log(`Name: ${glossary.name}`);
-        console.log(`Entry count: ${glossary.entryCount}`);
-        console.log(`Input uri: ${glossary.inputConfig.gcsSource.inputUri}`);
-        for (const languageCode of glossary.languageCodesSet.languageCodes) {
-          console.log(`Language code: ${languageCode}`);
-        }
+    // Run request
+    const [response] = await translationClient.listGlossaries(request);
+
+    for (const glossary of response) {
+      console.log(`Name: ${glossary.name}`);
+      console.log(`Entry count: ${glossary.entryCount}`);
+      console.log(`Input uri: ${glossary.inputConfig.gcsSource.inputUri}`);
+      for (const languageCode of glossary.languageCodesSet.languageCodes) {
+        console.log(`Language code: ${languageCode}`);
       }
-    } catch (error) {
-      console.error(error.details);
     }
   }
 
@@ -55,4 +51,8 @@ function main(projectId = 'YOUR_PROJECT_ID', location = 'us-central1') {
   // [END translate_v3_list_glossary]
 }
 
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
 main(...process.argv.slice(2));
diff --git a/translate/v3/translate_list_language_names.js b/translate/v3/translate_list_language_names.js
index 763429a6c04..4146dd969b0 100644
--- a/translate/v3/translate_list_language_names.js
+++ b/translate/v3/translate_list_language_names.js
@@ -35,17 +35,13 @@ function main(projectId = 'YOUR_PROJECT_ID', location = 'global') {
       displayLanguageCode: 'fr',
     };
 
-    try {
-      // Run request
-      const [response] = await translationClient.getSupportedLanguages(request);
-
-      console.log('Supported languages:');
-      for (const language of response.languages) {
-        console.log(`Language Code: ${language.languageCode}`);
-        console.log(`Display Name: ${language.displayName}`);
-      }
-    } catch (error) {
-      console.error(error.details);
+    // Run request
+    const [response] = await translationClient.getSupportedLanguages(request);
+
+    console.log('Supported languages:');
+    for (const language of response.languages) {
+      console.log(`Language Code: ${language.languageCode}`);
+      console.log(`Display Name: ${language.displayName}`);
     }
   }
 
@@ -53,4 +49,8 @@ function main(projectId = 'YOUR_PROJECT_ID', location = 'global') {
   // [END translate_v3_list_language_names]
 }
 
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
 main(...process.argv.slice(2));
diff --git a/translate/v3/translate_translate_text.js b/translate/v3/translate_translate_text.js
index 36d78e0224d..b81c42e1cde 100644
--- a/translate/v3/translate_translate_text.js
+++ b/translate/v3/translate_translate_text.js
@@ -42,15 +42,11 @@ function main(
       targetLanguageCode: 'sr-Latn',
     };
 
-    try {
-      // Run request
-      const [response] = await translationClient.translateText(request);
-
-      for (const translation of response.translations) {
-        console.log(`Translation: ${translation.translatedText}`);
-      }
-    } catch (error) {
-      console.error(error.details);
+    // Run request
+    const [response] = await translationClient.translateText(request);
+
+    for (const translation of response.translations) {
+      console.log(`Translation: ${translation.translatedText}`);
     }
   }
 
@@ -58,4 +54,8 @@ function main(
   // [END translate_v3_translate_text]
 }
 
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
 main(...process.argv.slice(2));
diff --git a/translate/v3/translate_translate_text_with_glossary.js b/translate/v3/translate_translate_text_with_glossary.js
index 3f7de057150..4c0d150713e 100644
--- a/translate/v3/translate_translate_text_with_glossary.js
+++ b/translate/v3/translate_translate_text_with_glossary.js
@@ -48,15 +48,11 @@ function main(
       glossaryConfig: glossaryConfig,
     };
 
-    try {
-      // Run request
-      const [response] = await translationClient.translateText(request);
+    // Run request
+    const [response] = await translationClient.translateText(request);
 
-      for (const translation of response.glossaryTranslations) {
-        console.log(`Translation: ${translation.translatedText}`);
-      }
-    } catch (error) {
-      console.error(error.details);
+    for (const translation of response.glossaryTranslations) {
+      console.log(`Translation: ${translation.translatedText}`);
     }
   }
 
@@ -64,4 +60,8 @@ function main(
   // [END translate_v3_translate_text_with_glossary]
 }
 
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
 main(...process.argv.slice(2));
diff --git a/translate/v3/translate_translate_text_with_glossary_and_model.js b/translate/v3/translate_translate_text_with_glossary_and_model.js
index bbfb617dbd8..25854e6d903 100644
--- a/translate/v3/translate_translate_text_with_glossary_and_model.js
+++ b/translate/v3/translate_translate_text_with_glossary_and_model.js
@@ -51,15 +51,11 @@ function main(
       model: `projects/${projectId}/locations/${location}/models/${modelId}`,
     };
 
-    try {
-      // Run request
-      const [response] = await translationClient.translateText(request);
+    // Run request
+    const [response] = await translationClient.translateText(request);
 
-      for (const translation of response.glossaryTranslations) {
-        console.log(`Translation: ${translation.translatedText}`);
-      }
-    } catch (error) {
-      console.error(error.details);
+    for (const translation of response.glossaryTranslations) {
+      console.log(`Translation: ${translation.translatedText}`);
     }
   }
 
@@ -67,4 +63,8 @@ function main(
   // [END translate_v3_translate_text_with_glossary_and_model]
 }
 
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
 main(...process.argv.slice(2));
diff --git a/translate/v3/translate_translate_text_with_model.js b/translate/v3/translate_translate_text_with_model.js
index 8dd52bb30ea..8efdc8b3303 100644
--- a/translate/v3/translate_translate_text_with_model.js
+++ b/translate/v3/translate_translate_text_with_model.js
@@ -45,15 +45,11 @@ function main(
       model: `projects/${projectId}/locations/${location}/models/${modelId}`,
     };
 
-    try {
-      // Run request
-      const [response] = await translationClient.translateText(request);
+    // Run request
+    const [response] = await translationClient.translateText(request);
 
-      for (const translation of response.translations) {
-        console.log(`Translated Content: ${translation.translatedText}`);
-      }
-    } catch (error) {
-      console.error(error.details);
+    for (const translation of response.translations) {
+      console.log(`Translated Content: ${translation.translatedText}`);
     }
   }
 
@@ -61,4 +57,8 @@ function main(
   // [END translate_v3_translate_text_with_model]
 }
 
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
 main(...process.argv.slice(2));