test for fast cloning of objects

clone.js

var fastDeepclone = require("fast-deepclone");
var FastClone = require("fastest-clone");
const arr = 'x'.repeat(10000).split('').map(_ => ({
  a: 2,
  b: { c: 1, d: { e: { f: { g: 5 } } } }
}));

for (let i = 0; i < 10; i++) {

  console.time('fastest-clone SINGLE x10000');
  for (let i = 0; i < 10000; i++) {
    const x = FastClone.cloneArray([ { a: 2 } ], true)[ 0 ];
  }
  console.timeEnd('fastest-clone SINGLE x10000');

  console.time('fastest-clone ARRAY(10000)');
  FastClone.cloneArray(arr, true);
  console.timeEnd('fastest-clone ARRAY(10000)');


  console.time('fast-deepclone SINGLE x10000');
  for (let i = 0; i < 10000; i++) {
    const x = fastDeepclone({ a: 2 });
  }
  console.timeEnd('fast-deepclone SINGLE x10000');

  console.time('fast-deepclone ARRAY(10000)');
  const x = fastDeepclone(arr);
  console.timeEnd('fast-deepclone ARRAY(10000)');


  console.time('JSON SINGLE x10000');
  for (let i = 0; i < 10000; i++) {
    const x = JSON.parse(JSON.stringify({ a: 2 }));
  }
  console.timeEnd('JSON SINGLE x10000');

  console.time('JSON ARRAY(10000)');
  JSON.parse(JSON.stringify(arr));
  console.timeEnd('JSON ARRAY(10000)');

  console.log('~'.repeat(80));
}

output

fastest-clone SINGLE x10000: 51.541ms
fastest-clone ARRAY(10000): 5.078ms
fast-deepclone SINGLE x10000: 15.998ms
fast-deepclone ARRAY(10000): 99.078ms
JSON SINGLE x10000: 11.605ms
JSON ARRAY(10000): 30.400ms
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fastest-clone SINGLE x10000: 65.647ms
fastest-clone ARRAY(10000): 3.466ms
fast-deepclone SINGLE x10000: 15.829ms
fast-deepclone ARRAY(10000): 72.650ms
JSON SINGLE x10000: 16.246ms
JSON ARRAY(10000): 21.023ms
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fastest-clone SINGLE x10000: 44.969ms
fastest-clone ARRAY(10000): 2.095ms
fast-deepclone SINGLE x10000: 20.088ms
fast-deepclone ARRAY(10000): 76.063ms
JSON SINGLE x10000: 6.357ms
JSON ARRAY(10000): 20.863ms
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fastest-clone SINGLE x10000: 40.331ms
fastest-clone ARRAY(10000): 7.933ms
fast-deepclone SINGLE x10000: 12.039ms
fast-deepclone ARRAY(10000): 92.510ms
JSON SINGLE x10000: 6.393ms
JSON ARRAY(10000): 20.875ms
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fastest-clone SINGLE x10000: 38.742ms
fastest-clone ARRAY(10000): 2.148ms
fast-deepclone SINGLE x10000: 14.438ms
fast-deepclone ARRAY(10000): 68.346ms
JSON SINGLE x10000: 6.720ms
JSON ARRAY(10000): 20.872ms
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fastest-clone SINGLE x10000: 38.047ms
fastest-clone ARRAY(10000): 2.756ms
fast-deepclone SINGLE x10000: 11.328ms
fast-deepclone ARRAY(10000): 78.000ms
JSON SINGLE x10000: 6.362ms
JSON ARRAY(10000): 21.123ms
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fastest-clone SINGLE x10000: 48.383ms
fastest-clone ARRAY(10000): 4.475ms
fast-deepclone SINGLE x10000: 21.040ms
fast-deepclone ARRAY(10000): 75.319ms
JSON SINGLE x10000: 6.481ms
JSON ARRAY(10000): 19.148ms
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fastest-clone SINGLE x10000: 36.431ms
fastest-clone ARRAY(10000): 2.117ms
fast-deepclone SINGLE x10000: 10.694ms
fast-deepclone ARRAY(10000): 76.410ms
JSON SINGLE x10000: 6.039ms
JSON ARRAY(10000): 28.506ms
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fastest-clone SINGLE x10000: 37.697ms
fastest-clone ARRAY(10000): 1.865ms
fast-deepclone SINGLE x10000: 10.297ms
fast-deepclone ARRAY(10000): 74.561ms
JSON SINGLE x10000: 6.136ms
JSON ARRAY(10000): 24.182ms
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fastest-clone SINGLE x10000: 42.572ms
fastest-clone ARRAY(10000): 2.220ms
fast-deepclone SINGLE x10000: 14.325ms
fast-deepclone ARRAY(10000): 73.416ms
JSON SINGLE x10000: 6.400ms
JSON ARRAY(10000): 20.029ms
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~