Dialogflow内联编辑器async函数报错问题求助

针对你遇到的'async functions' is only available in ES8 (use 'esversion:8')报错，即便添加了jshint配置仍未解决的情况，以下是几个关键排查和修正点：

1. 修正package.json中jshintConfig的位置 #

你当前把jshintConfig放在了engines字段内部，这是错误的配置位置——jshint配置应该作为package.json的根级独立字段存在。

修正后的package.json片段：

{
  "name": "dialogflowFirebaseFulfillment",
  "description": "This is the default fulfillment for a Dialogflow agents using Cloud Functions for Firebase",
  "version": "0.0.1",
  "private": true,
  "license": "Apache Version 2.0",
  "author": "Google Inc.",
  "engines": {
    "node": "10"
  },
  "jshintConfig": {
    "esversion": 8,
    "strict": "implied",
    "devel": true,
    "node": true,
    "globals": {}
  },
  "scripts": {
    "start": "firebase serve --only functions:dialogflowFirebaseFulfillment",
    "deploy": "firebase deploy --only functions:dialogflowFirebaseFulfillment"
  },
  "dependencies": {
    "actions-on-google": "^2.2.0",
    "firebase-admin": "^5.13.1",
    "firebase-functions": "^2.0.2",
    "dialogflow": "^0.6.0",
    "dialogflow-fulfillment": "^0.5.0",
    "@google-cloud/bigquery": "^0.12.0"
  }
}

2. 确保jshint指令在代码最开头 #

将jshint的配置注释放在JavaScript文件的最顶部，甚至在'use strict'之前，确保jshint能优先读取配置规则：

/* jshint esversion: 8 */
'use strict';

function main() {
    const {BigQuery} = require('@google-cloud/bigquery');

    async function query () {
        const bigqueryClient = new BigQuery();
        // 修正SQL语句的反引号转义问题
        const sqlQuery = `SELECT * FROM \`sample.dataset\` LIMIT 1000;`;

        const options = {
            query: sqlQuery,
            location: 'US',
            params: {serialnumber: 'test', min_word_count: 250},
            useQueryCache: false,
        };
    }
}

3. 修复代码中的语法错误 #

你的SQL语句存在语法错误：模板字符串内部的表名使用了未转义的反引号，会导致代码解析失败，进而干扰jshint的规则检查。需要将内部的反引号转义为```（如上代码所示）。

4. 清除内联编辑器缓存并重新部署 #

Dialogflow内联编辑器有时会缓存旧的配置或代码，执行以下操作确保配置生效：

• 刷新浏览器页面
• 点击编辑器顶部的“Deploy”按钮重新部署 fulfillment 函数

内容的提问来源于stack exchange，提问作者Min Max