formatJson

Pretty-print JSON. Accepts an object, or a JSON string to reformat.

API

formatJson(value, onError?, indent?)

Returns the formatted string, or '' when the input cannot be parsed.

Example

import { formatJson } from 'ranuts';

formatJson({ a: 1, b: [2, 3] });
formatJson("{'a': 1}"); // single quotes tolerated
formatJson({ a: 1 }, undefined, 2); // 2-space indent
formatJson('nope', (e) => console.warn(e)); // '' and the error handed to the callback

Notes

1. A string input is re-parsed, not echoed. That validates it and normalizes the layout rather than trusting whatever spacing the caller had.
2. Errors are reported, never thrown. Invalid JSON, circular structures and values JSON.stringify cannot represent all return '' and invoke onError.