How to print a circular structure in a JSON-like format

0 votes

I want to convert to JSON and send. However it has circular structure. I want to toss whatever circular references exist and send whatever can be stringified. How do I do that?

Thanks.

var obj = {
  a: "foo",
  b: obj
}

I want to stringify obj into:

{"a":"foo"}
Apr 24, 2020 in Java-Script by kartik
• 37,510 points
805 views

1 answer to this question.

0 votes

Hello,

You can use util.inspect(object) in node.js. It automatically replaces circular links with "[Circular]".

Albeit being built-in (no installation is required), you must import it

import * as util from 'util' // has no default export
import { inspect } from 'util' // or directly
// or 
var util = require('util')

To use it, simply call

console.log(util.inspect(myObject))

Also be aware that you can pass options object to inspect (see link above)

inspect(myObject[, options: {showHidden, depth, colors, showProxy, ...moreOptions}])

Hope this works!!

Thank You!!

answered Apr 24, 2020 by Niroj
• 82,720 points

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