How to stringify Error in js?

Question

Is it not possible to stringify error using JSON.stringify?

Also, Object.keys(err) wouldn't show any keys present with Error object.

Other observation: Error object has non standard property "stack" which I am trying to access. Error.prototype.stack provides with stack trace. In my attempts to stringify properties of Error(name, message and stack), any help is appreciated!

Following is the output from Chrome.

  > var err = new Error
    undefined
  > err
    Error
       at <anonymous>:1:11
   JSON.stringify(err)
  > "{}"

Possible duplicate of [Is it not possible to stringify an Error using JSON.stringify?](https://stackoverflow.com/questions/18391212/is-it-not-possible-to-stringify-an-error-using-json-stringify) — Jacob, Sep 30 '17 at 00:25

score 0 · Answer 1 · answered Jul 21 '20 at 19:48

0

You could use something like this:

    JSON.stringify(error.stack)

answered Jul 21 '20 at 19:48

Mateus Moreira

11
1

score -4 · Accepted Answer · answered Sep 30 '17 at 01:24

-4

How about try something like err.toString()

answered Sep 30 '17 at 01:24

Kelly Adrian Neri

24
3

3

Doesn't print the whole stack. – Tanvi Patel Oct 02 '17 at 21:39

How to stringify Error in js?

2 Answers2