Run results for: spread operator VS delete

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36 OPR/114.0.0.0

Browser: Opera 114

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

mutable - delete

21.8M/s

imutable - spread operator

8.0M/s

imutable spread operator - delete

5.9M/s

imutable assign - delete

3.7M/s

imutable stringify - delete

448K/s

View exact numbers

Test name	Executions per second
✓ mutable - delete	21,800,026 Ops/sec
imutable - spread operator	8,020,452 Ops/sec
imutable spread operator - delete	5,852,674 Ops/sec
imutable assign - delete	3,694,964 Ops/sec
imutable stringify - delete	447,938 Ops/sec

Script Preparation code:

var user = {
id: 1,
    name: 'Hamed',
    gender: 'male',
  email: 'johndoe@example.com',
  address: {
    street: '123 Main Street',
    city: 'Anytown',
    state: 'ABC',
    country: 'XYZ'
  },
  hobbies: ['reading', 'coding', 'gaming'],
  education: [
    {
      degree: 'Bachelor of Science',
      major: 'Computer Science',
      university: 'ABC University',
      year: 2015
    },
    {
      degree: 'Master of Business Administration',
      major: 'Business Management',
      university: 'XYZ University',
      year: 2019
    }
  ],
  projects: {
    project1: {
      name: 'Project A',
      description: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit.',
      startDate: '2020-01-01',
      endDate: '2021-12-31'
    },
    project2: {
      name: 'Project B',
      description: 'Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.',
      startDate: '2022-01-01',
      endDate: '2023-06-30'
    }
  }
    
}

Tests: