Run results for: Deep equal

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:134.0) Gecko/20100101 Firefox/134.0

Browser: Firefox 134

Operating system: Ubuntu

Device Platform: Desktop

Date tested: one year ago

Compare two equal objects

668K/s

Compare two unequal objects

506K/s

View exact numbers

Test name	Executions per second
✓ Compare two equal objects	668,313 Ops/sec
Compare two unequal objects	506,433 Ops/sec

HTML Preparation code:

<script>
const equal = (a, b) => {
  if (a === b) return true;
  if (a && b && typeof a === 'function' && typeof b === 'function') {
    return a.toString() === b.toString();
  }
  if (a && b && typeof a === 'object' && typeof b === 'object') {
    if (a.constructor !== b.constructor) return false;
    let length, index;
    if (Array.isArray(a)) {
      length = a.length;
      if (length !== b.length) return false;
      index = length;
      while (index--) {
        if (!equal(a[index], b[index])) return false;
      }
      return true;
    }
    const keys = Object.keys(a);
    length = keys.length;
    if (length !== Object.keys(b).length) return false;
    index = length;
    while (index--) {
      if (!Object.prototype.hasOwnProperty.call(b, keys[index])) return false;
    }
    index = length;
    while (index--) {
      const key = keys[index];
      if (!equal(a[key], b[key])) return false;
    }
    return true;
  }
  return false;
};
</script>

Tests:

Compare two equal objects
const a = { a: 123, b: true, c: ()=> console.log('test'), d: [ 1, 2, 3, { t: 'test', k: [ {}, [9, 8, 7], {} ] }, [], {}, { a: 'text', b: false } ] }; const b = { a: 123, b: true, c: ()=> console.log('test'), d: [ 1, 2, 3, { t: 'test', k: [ {}, [9, 8, 7], {} ] }, [], {}, { a: 'text', b: false } ] }; equal(a, b);
Compare two unequal objects
const a = { a: 123, b: true, c: ()=> console.log('this is a fn call'), d: [ 1, 2, 3, { t: 'test', k: [ {}, [9, 8, 7], {} ] }, [], {}, { a: 'text', b: false } ] }; const b = { a: 123, b: true, c: ()=> console.log('test'), d: [ 1, 2, 3, { t: 'test', k: [ {}, [9, 8, 7], {} ] }, [], {}, { a: 'text', b: false } ] }; equal(a, b);

Run results for: Deep equal

Compares deeply two objects

Compare two equal objects

Compare two unequal objects