convert object to string using JSON.stringify show empty object [duplicate]

Question

I'm trying to convert object to string using JSON.stringify and I get empty object

console.log('typeof',typeof e,' e value is',e, 'JSON stringify is',JSON.stringify(e))

the error message when I try to print

typeof object e value is Error: Error: A network error (such as timeout, interrupted connection or unreachable host) has occurred. JSON stringify is {}

@ManuallyOverridden console.log is variadic — you can pass multiple objects, which are separated by a ,. — Mark
– Mark, Commented Jul 1, 2018 at 6:38
It looks like e is an error object. In node, stringifying an error results in {}. Not sure how you are running your code. — Mark
– Mark, Commented Jul 1, 2018 at 6:40
@ManuallyOverridden even I do let a = JSON.stringify(e) and I print a I get empty object.. — Manspof
– Manspof, Commented Jul 1, 2018 at 6:40
@Mark_M how can I print error object? I want use it to string and show in client side — Manspof
– Manspof, Commented Jul 1, 2018 at 6:45

Mark · Accepted Answer · 2018-07-01 06:47:21Z

3

Your object e is an error object. When you try to stringify that you get {} in chrome and node. Safari shows a little more info.

let e = new Error("hello")
console.log(typeof e)
console.log(JSON.stringify(e))

You can test for errors with:

let e = new Error("Some error happened")
if (e instanceof Error) {
  console.log("Error:", e.message)
 }

answered Jul 1, 2018 at 6:47

Mark

92.6k8 gold badges116 silver badges156 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

convert object to string using JSON.stringify show empty object [duplicate]

1 Answer 1

Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Linked

Related