无法使用带有节点的express的res.send发送号码

问题描述

根据Express res.send([body])文档：

body参数可以是Buffer对象，String，对象或Array。

您不能自己发送号码。

尝试将数字转换为字符串

res.send(''+result.rows[0].doc.imdb.rating);

或将其作为对象值发送

res.send({ result: result.rows[0].doc.imdb.rating});

解决方法

我试图在节点中使用express来获得“ imdb评级”，我正在努力。

电影.json

[{
"id": "3962210","order": [4.361276149749756,1988],"fields": {
    "year": 2015,"title": "David and Goliath","director": "Timothy A. Chey"
},"doc": {
    "_id": "3962210","_rev": "1-ac648e016b0def40382d5d1b9ec33661","year": 2015,"rating": "PG","runtime": "92 min","genre": ["Drama"],"director": "Timothy A. Chey","writer": ["Timothy A. Chey"],"cast": ["Miles Sloman","Jerry Sokolosky","Makenna Guyler","Paul Hughes"],"poster": "http://ia.media-imdb.com/images/M/MV5BMjA3OTQ4NDc4MV5BMl5BanBnXkFtZTgwNDYwMzA1MjE@._V1_SX300.jpg","imdb": {
        "rating": 8.4,"votes": 138,"id": "tt3962210"
    }
}
},{
"id": "251656","order": [3.489020824432373,686],"fields": {
    "year": 1999,"title": "David Cross: The Pride Is Back","director": "Troy Miller"
},"doc": {
    "_id": "251656","_rev": "1-2d0762776874f94af8f2d76e5991b529","year": 1999,"rating": null,"runtime": "55 min","genre": ["Comedy"],"director": "Troy Miller","writer": ["David Cross"],"cast": ["David Cross","Molly Brenner","Amiira Ruotola"],"poster": "http://ia.media-imdb.com/images/M/MV5BODcwMjMxOTU4OF5BMl5BanBnXkFtZTgwODE0MTc4MTE@._V1_SX300.jpg","imdb": {
        "rating": 7.9,"votes": 380,"id": "tt0251656"
    }
}
}]

结果

res.send(result.rows[0].doc.imdb); 退货
{"rating":8.4,"votes":138,"id":"tt3962210"}

但

res.send(result.rows[0].doc.imdb.rating); //不返回8.4，只是崩溃的节点

和

res.send(result.rows[0].doc.title); //返回David和Goliath

res.send(result.rows[0].doc.cast[0]); //返回Miles Sloman

我要去哪里错了？