javascript - 如何以类似JSON的格式打印圆形结构？(How can I print a circular structure in a JSON-like format?)

Question

I have a big object I want to convert to JSON and send.

(我有一个大对象，想要转换为JSON并发送。)

However it has circular structure.

(但是它具有圆形结构。)

I want to toss whatever circular references exist and send whatever can be stringified.

(我想抛弃任何存在的循环引用，并发送任何可以字符串化的内容。)

How do I do that?

(我怎么做？)

Thanks.

(谢谢。)

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

I want to stringify obj into:

(我想将obj字符串化为：)

{"a":"foo"}

  ask by Harry translate from so

Answer 1

In Node.js, you can use util.inspect(object) .

(在Node.js中，可以使用util.inspect（object） 。)

It automatically replaces circular links with "[Circular]".

(它会自动将圆形链接替换为“ [Circular]”。)

---

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

(尽管是内置的（无需安装） ，但必须将其导入)

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 要使用它，只需调用)

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

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

(另外请注意，您可以通过options对象进行检查（请参见上面的链接）)

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

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