javascript split和JSON.parse

Question

I want to parse array in JSON format using javascript. I have written following code.

var data = "abc, xyz, pqr";
var data_array = data.split(',');

var data_parsed = JSON.parse(data_array);
alert(data_parsed);

It gives me the error of JSON.parse I have no idea how to resolve this javascript error.

Answer 1

You don't have any JSON, so don't use JSON.parse. Once you split you already have an array whose elements could be used directly:

var data = "abc, xyz, pqr";
var data_array = data.split(',');
alert(data_array[0]);

and if you want to convert this array to a JSON string you could do this:

var json = JSON.stringify(data_array);
alert(json);

Answer 2

This is actually a convenient short cut to json processing if you only need a smaller set of variables.

PHP:

return $var1 .','. $var2 .',some_string_value.';

Javascript:

var myReturnArray = returnValue.split(',');

Answer 3

That's because "abc, xyz, pqr" isn't valid JSON. Plus, JSON.parse() is meant to parse JSON strings, not arrays. What are you trying to do, perhaps we can better assist.