Benchmark: structuredClone vs deepClone in larger objects

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.21/lodash.min.js"></script>

Script Preparation code:

function createComplexNestedObject(depth = 10, breadth = 5, level = 1) {
  const result = {};
  if (level < depth) result[`deepStart_${level}`] = createComplexNestedObject(depth, breadth, level + 1);
  for (let index = 0; index < breadth; index++) {
    const opts = [
      `val_${level}_${index}_` + 'x'.repeat(50) /* string */,
      level * 1e3 + index /* number */,
      index % 2 === 0 /* boolean */,
      null /* null */,
      [index, level, `s${index}`] /* array */,
      new Date(Date.UTC(2020 + level, index % 12, (index % 28) + 1)) /* date */,
      new RegExp(`p_${level}_${index}`) /* regexp */
    ];
    result[`field_${level}_${index}`] = opts[index % opts.length];
    if (level < depth && index === Math.floor(breadth / 2)) result[`deepMid_${level}`] = createComplexNestedObject(depth, breadth, level + 1);
  }
  if (level < depth) result[`deepEnd_${level}`] = createComplexNestedObject(depth, breadth, level + 1);
  return result;
}

var MyObject = createComplexNestedObject(10, 8);
var myCopy = null;

Tests:

cloneDeep
_.cloneDeep(MyObject)
structuredClone
myCopy = structuredClone(MyObject);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
cloneDeep
structuredClone

structuredClone vs deepClone in larger objects (version: 1)

Comparing performance of: cloneDeep vs structuredClone

Created: one year ago by: Guest

Jump to the latest result

cloneDeep

structuredClone

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results