JSON Parse: Uncaught SyntaxError: Unexpected token e

Question

I am trying to parse a JSON string. This is the contents of the string:

[[ new Date(2016, 2, 11), 439 ],[ new Date(2016, 2, 10), 1110 ],[ new Date(2016, 2, 9), 9 ],[ new Date(2016, 2, 8), 2 ]]

This is the code

var data = JSON.parse(str);

This is the error

Uncaught SyntaxError: Unexpected token e

How can I prepare this string to be parsed by JSON.parse() ?

Answer 1

You need to replace each instance of new Date(2016, 2, 11) with a valid JSON data type.

You could express a date with, for example, a string containing a ISO 8601 data or a number representing the seconds since the epoch.

Answer 2

我用以下方法解决了这个问题：

eval( "data = " + str );

Answer 3

In JavaScript, construct it something like this ( http://www.w3schools.com/json/json_syntax.asp )...

// Bear in mind that month 2 = March in JavaScript!
var dte1 = new Date(2016, 2, 11);
var dte2 = new Date(2016, 2, 10);
var dte3 = new Date(2016, 2, 9);
var dte4 = new Date(2016, 2, 8);

var str = '[ ';
str += '{ "d": "' + dte1.toJSON() + '", "n": 439 }, ';
str += '{ "d": "' + dte2.toJSON() + '", "n": 1110 }, ';
str += '{ "d": "' + dte3.toJSON() + '", "n": 9 }, ';
str += '{ "d": "' + dte4.toJSON() + '", "n": 2 } ]';

var data = JSON.parse(str);

alert("Date: " + data[0].d);
alert("Amount: " + data[0].n);

I've constructed this as an array of objects with properties d and n, to allow you to access the date and the number of each object in the array. You should call these something more meaningful to your needs.