JSON.stringify for circular

circular-stringify.js

export default function circularStringify(object, { indentation } = {}) {
  if (Array.isArray(object)) {
    object = object.map((element) =>
      JSON.parse(JSON.stringify(element, replacer())),
    )
  }
  return JSON.stringify(object, replacer(), indentation)
}

const replacer = () => {
  const seen = new WeakSet()

  return (key, value) => {
    if (value !== null && typeof value === 'object') {
      if (seen.has(value)) return '[Circular]'
      seen.add(value)
    }
    return value
  }
}