jsonc

© 2021, Onur Yıldırım (@onury). MIT License.

Everything you need in JSON land.

npm i jsonc

Features

• Parse JSON with comments.
• Stringify objects with circular references.
• Safely parse / stringify without try/catch blocks.
• Read and auto-parse JSON files gracefully, sync or async (with promises).
• Auto-stringify and write JSON files gracefully, sync or async (with promises).
• Strips UTF-8 BOM.
• Log objects as JSON (without worrying about errors).
• Uglify/beautify JSON strings.
• More helpful JSON errors.
• Friendly API.
• TypeScript support.

Usage

See the concise API reference.

const jsonc = require('jsonc');
// or
import { jsonc } from 'jsonc';

This is safe for JSON with comments:

jsonc.parse('// comment\n{"data": /* comment */ "value"}\n'); // » { data: 'value' }

And this is safe for circular references:

const obj = { x: 1 };
obj.y = obj; // circular
jsonc.stringify(obj); // » { x: 1, y: '[Circular]' }

But this is seriously safe:

// safe version of every method
const jsonc = require('jsonc').safe;
// or
import { safe as jsonc } from 'jsonc';

const [err, result] = jsonc.parse('[invalid JSON}');
if (err) {
    console.log(`Failed to parse JSON: ${err.message}`);
} else {
    console.log(result);
}

Documentation

See the concise API reference.

Change Log

• v2.0.0 (2019-06-17)

  • Requires Node.js v8 or newer.
  • Updated dependencies.

• v1.1.0 (2018-11-22)

  • Fixed an issue where TypeScript compiler would complain about 'declare' modifier.
  • Improved typings for safe methods.
  • Updated core dependencies.

• v1.0.0 (2018-10-18)

  • Initial release.

License

MIT.