Benchmark: javascript new vs Object.create 2

Tests:

Object.create
let bar = Object.create(Object.prototype);
new
let foo = new Object();

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Object.create
new

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 10 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36

Browser/OS: Chrome 137 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Object.create	240586672.0 Ops/sec
new	230194576.0 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

LLMs can make mistakes. Check important info.

Let's break down the benchmark and explain what's being tested.

**What is being tested?**

The provided JSON represents a JavaScript microbenchmark that compares two ways to create an object: using the `new` keyword and `Object.create`. The benchmark aims to determine which method is faster, more efficient, or has better performance characteristics.

**Options compared**

Two options are being compared:

1. **`new Object()`**: This creates a new object instance by calling the constructor function specified in the `Object` prototype chain.
2. **`Object.create(Object.prototype)`**: This creates an object that inherits from the `Object.prototype`. The first argument to `create()` is the prototype to inherit from.

**Pros and Cons**

*   **`new Object()`**:
    *   Pros:
        +   More concise and expressive syntax
        +   Easier to read and understand
        *   Cons:
            -   May incur additional overhead due to constructor function invocation and prototype chain lookup
    *   **Object.create()**:
        +   Pros:
            -   Can be more efficient for certain use cases, as it avoids the overhead of constructor function invocation and prototype chain lookup
            -   Provides more control over inheritance and prototype chain configuration

**Library and purpose**

There is no specific library mentioned in the benchmark. However, `Object.create()` relies on the JavaScript built-in `Object` object.

**Special JS feature or syntax**

The benchmark does not use any special JavaScript features or syntax beyond standard language constructs. It's designed to be compatible with a wide range of JavaScript engines and environments.

**Other alternatives**

If you wanted to create an object without using either `new Object()` or `Object.create()`, you could consider other methods, such as:

*   **`Array.prototype.slice.call()`**: Creates an object from an array prototype.
*   **`Function.prototype.constructor()`**: Creates an object with the specified constructor function.
*   **`Set.prototype.from()`** (for older browsers): Creates an object from a set prototype.

Keep in mind that these alternatives might have different performance characteristics and are not as straightforward to use as `new Object()` or `Object.create()`.

Related benchmarks:

javascript new vs Object.create 2 (version: 0)

Comparing performance of: Object.create vs new

Created: 2 years ago by: Guest

Jump to the latest result

Object.create

new

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):