Question

I have a json object

eg

{
 "href":"Test",
 "commentID":"12334556778"
} 

Is there a way just to get the second line i.e. “commentID”:”12334556778″
I’m using

JSON.stringify(json)

Thanks all

Answer 1

JSON.stringify accepts a third argument which handles white-space in the output. If the third argument is present and “truthy”, line-breaks will be inserted and each level will be indented using the argument’s string value, or a number of spaces if a number is passed. Using this technique, you can get the browser to insert line-breaks and then split on those line-breaks in the result:

var obj = {
        "href":"Test",
        "commentID":"12334556778"
    },
    arr = JSON.stringify(obj, null, 1).split("\n");

alert(arr[2]);
//-> ' "commentID": "12334556778"'

Working demo: http://jsfiddle.net/AndyE/ercRS/ (requires browsers with JSON/trim)

You might want to trim any leading white space or trailing comma, but I’ll leave that up to you.