lukeed/klona

$ npm install --save klona

import { klona } from 'klona/json';

import { klona } from 'klona/lite';

import { klona } from 'klona';

import { klona } from 'klona/full';

import { klona } from 'klona';

const input = {
  foo: 1,
  bar: {
    baz: 2,
    bat: {
      hello: 'world'
    }
  }
};

const output = klona(input);

// exact copy of original
assert.deepStrictEqual(input, output);

// applying deep updates...
output.bar.bat.hola = 'mundo';
output.bar.baz = 99;

// ...doesn't affect source!
console.log(
  JSON.stringify(input, null, 2)
);
// {
//   "foo": 1,
//   "bar": {
//     "baz": 2,
//     "bat": {
//       "hello": "world"
//     }
//   }
// }

Load times:
  lodash/clonedeep   29.257ms
  rfdc                0.511ms
  clone               0.576ms
  clone-deep          2.494ms
  deep-copy           0.451ms
  klona/full          0.408ms
  klona               0.265ms
  klona/lite          0.308ms
  klona/json          0.263ms

Benchmark :: JSON
  JSON.stringify      x   53,899 ops/sec ±0.76% (92 runs sampled)
  lodash              x   46,800 ops/sec ±0.86% (90 runs sampled)
  rfdc                x  221,456 ops/sec ±0.88% (92 runs sampled)
  clone               x   39,537 ops/sec ±0.68% (92 runs sampled)
  clone/include       x   25,488 ops/sec ±1.06% (88 runs sampled)
  clone-deep          x   99,998 ops/sec ±0.91% (93 runs sampled)
  deep-copy           x  141,270 ops/sec ±0.95% (92 runs sampled)
  klona/full          x   55,016 ops/sec ±0.68% (94 runs sampled)
  klona               x  281,215 ops/sec ±0.77% (93 runs sampled)
  klona/lite          x  318,481 ops/sec ±0.72% (91 runs sampled)
  klona/json          x  334,932 ops/sec ±0.66% (93 runs sampled)

Benchmark :: LITE
  lodash              x   36,992 ops/sec ±0.65% (91 runs sampled)
  clone               x   35,974 ops/sec ±1.13% (88 runs sampled)
  clone/include       x   22,609 ops/sec ±1.02% (91 runs sampled)
  clone-deep          x   92,846 ops/sec ±0.66% (93 runs sampled)
  klona/full          x   47,873 ops/sec ±0.83% (88 runs sampled)
  klona               x  226,638 ops/sec ±1.16% (93 runs sampled)
  klona/lite          x  257,900 ops/sec ±0.82% (93 runs sampled)

Benchmark :: DEFAULT
  lodash              x   55,914 ops/sec ±0.75% (93 runs sampled)
    ✘ Buffer
    ✘ Map keys
  clone               x   92,127 ops/sec ±0.83% (94 runs sampled)
    ✘ DataView
  clone/include       x   62,052 ops/sec ±0.88% (93 runs sampled)
    ✘ DataView
  klona/full          x   90,308 ops/sec ±0.68% (89 runs sampled)
  klona               x  230,257 ops/sec ±0.71% (91 runs sampled)

Benchmark :: FULL
  lodash              x   60,361 ops/sec ±0.65% (91 runs sampled)
    ✘ Buffer
    ✘ Map keys
    ✘ Missing non-enumerable Properties
  clone/include       x   47,263 ops/sec ±0.85% (93 runs sampled)
    ✘ DataView
    ✘ Incorrect non-enumerable Properties
  klona/full          x   82,346 ops/sec ±0.62% (93 runs sampled)