如何使用require（'./ data.js'）读取Node.js中的JSON对象数组

Question

The data stored is in data.js file (not JSON) and it is an array of objects. As an example,

 [
    {"id":"u4cse101", "name":"supriya","batch":"b"},
    {"id":"u4cse102", "name":"rahul", "batch":"a"},
    {"id":"u4cse345", "name":"ahalya", "batch":"a"}
 ]

I tried many methods, but couldn't achieve. Your help will be appreciated. UPDATE: One solution found is have the following in data.js file

JOURNAL = [
  {"x":"y"},
  {"a":"a"}
];
if (typeof module != "undefined" && module.exports)
  module.exports = JOURNAL;

and use the variable JOURNAL in another javascript file directly using require('./data.js') . But I am getting error:

if (typeof module != "undefined" && module.exports)
^^

SyntaxError: Unexpected token if

Answer 1

you can save your json data file as data.json and use require to import json file

var jsn = require("./data.json");
jsn = JSON.parse(jsn);

//data.json
[
{"x":"y"},
{"a":"a"}
];

Answer 2

It's easy, you can follow this approach.

var fs = require('fs');
var obj;
fs.readFile('data.js', 'utf8', function (err, data) {
  if (err) throw err;
  obj = JSON.parse(data);
});

Hope it resolve your issue :)

Answer 3

You can use like this

var fs = require('fs');
fs.readFile('data.js', 'utf8', function(error, data) {
    data = JSON.parse(data);
})
//or
var data = fs.readFileSync('data.js', 'utf8');

Answer 4

I solved the problem. The file should be

JOURNAL = [[
  {"x":"y"},
  {"a":"a"}
]];

instead of

JOURNAL = [
  {"x":"y"},
  {"a":"a"}
];

Answer 5

data.json file

{
"firstname:"abc",
"lastname":"xyz"
}

And then your route.js file you can include data.json file and print the data value like that:

var fs = require('fs'), obj

// Read the file and send to the callback fucntion
fs.readFile('path of data.json file', fileHandler)

// Write the callback function

function fileHandler(err, data) {

    if (err) throw err
    obj = JSON.parse(data)
    // You can now play with your datas
}