当我将一个JSON字符串发送到jade文件进行rending时,我只能打印出整个字符串而不是它的元素。如何打印出特定元素或循环访问JSON字符串?
app.js:
var http = require('http'),
express = require('express'),
net = require('net');
var app = express();
app.set('views', __dirname + '/views');
app.set('view engine', 'jade');
app.use(express.logger('dev'));
app.use(express.static(__dirname + '/public'));
app.get('/', function (req, res) {
var json_string = {"action":"date +%s","result":"1367263074"};
res.render('index', { layout : 'layout', json: JSON.stringify(json_string) });
})
app.listen(3000);
layout.jade:
!!!5
html
head
body
p !{json}
p !{json.result}
p ---
each val, key in json
p #{key}: #{val}
预期产出:
{"action":"date +%s","result":"1367263074"}
1367263074
---
action: date +%s
result: 1367263074
实际输出:
{"action":"date +%s","result":"1367263074"}
---
0: {
1: "
2: a
3: c
4: t
5: i
6: o
7: n
8: "
9: :
10: "
11: d
12: a
13: t
14: e
15:
16: +
17: %
18: s
19: "
20: ,
21: "
22: r
23: e
24: s
25: u
26: l
27: t
28: "
29: :
30: "
31: 1
32: 3
33: 6
34: 7
35: 2
36: 6
37: 3
38: 0
39: 7
40: 4
41: "
42: }
答案 0 :(得分:16)
你为什么要传递一个字符串?试试这个:
var ob = { action:"date +%s", result:"1367263074"};
res.render('index', { layout : 'layout', json: ob });
或者这样做:
-var ob = JSON.parse(json)
-for(var prop in ob)
p #{prop}: #{ob[prop]}
答案 1 :(得分:7)
在这一行:each val, key in json
首先将您的JS对象(服务器端)进行字符串化,不要将其字符串化以将其作为对象。
所以这一行:
res.render('index', { layout : 'layout', json: JSON.stringify(json_string) });
变为
res.render('index', { layout : 'layout', json: json_string });
答案 2 :(得分:2)
如果您正在寻找循环一系列操作和结果,请使用Mathieu Amiot的建议以及此代码:
each key in json
p !{key.action} !{key.result}