由于：TypeError：handlebars is not a function，无法设置车把

Posted 2023-02-19

【中文标题】由于：TypeError：handlebars is not a function，无法设置车把

【英文标题】：Unable to set up handlebars due to : TypeError: handlebars is not a function

【发布时间】：2022-01-01 22:40:30

【问题描述】：

const express = require('express');
const app = express();

//set up handlebars
const handlebars = require('express-handlebars');
app.engine("handlebars",handlebars())
app.set("view engine", "handlebars")


const sqlite3 = require('sqlite3');
const sqlite = require('sqlite');

const port = 8080

const dbPromise = sqlite.open(

    filename:"./database/sakila.sqlite",
    driver: sqlite3.Database
)


app.get("/",(req,res)=>

  
    res.render("home",layout:false);

)


app.listen(port,()=>

    console.log(`server running on $port`);


)

我正在观看一个讲座视频来了解车把。我逐字输入相同的代码来设置车把，然后我执行了 npm install express-handlebars --save。讲师的代码有效，但我的无效。 它只是警告我

"app.engine("车把",车把()) ^

TypeError：车把不是函数

" 我不知道为什么。请帮忙。提前谢谢你。

【问题讨论】：

简单阅读the documentation，上面写着：import engine from 'express-handlebars'; app.engine('handlebars', engine())。我假设你也可以使用app.engine("handlebars",handlebars.engine())

【参考方案1】：

const express = require("express");
const handlebars = require("express-handlebars");
const app = express();

//set up handlebars

app.engine("handlebars", handlebars());
app.set("view engine", "handlebars");

const sqlite3 = require("sqlite3");
const sqlite = require("sqlite");

const port = 8080;

const dbPromise = sqlite.open(
  filename: "./database/sakila.sqlite",
  driver: sqlite3.Database
);

app.get("/", (req, res) => 
  res.render("home",  layout: false );
);

app.listen(port, () => 
  console.log(`server running on $port`);
);