Benchmark: hash-sum vs object-hash vs _.isEqual

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/hash-sum@2.0.0/hash-sum.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/object-hash@2.0.3/dist/object_hash.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>

Script Preparation code:

var context1 = {
  title: 'fish',
  foo: [{ bar: { baz: true }, arr: [1,2,3,4,5,"pirate"]}],
  position: 1
}

var context2 = {
  title: 'fish',
  foo: [{ bar: { baz: true }, arr: [1,2,3,4,5,"pirate"]}],
  position: 1
}

Tests:

Sum
sum(context1) === sum(context2)
Object-hash
objectHash(context1) === objectHash(context2)
isEqual
_.isEqual(context1, context2)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Sum
Object-hash
isEqual

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:136.0) Gecko/20100101 Firefox/136.0

Browser/OS: Firefox 136 on Mac OS X 10.15

View result in a separate tab

Test name	Executions per second
Sum	87542.3 Ops/sec
Object-hash	8329.5 Ops/sec
isEqual	1099404.5 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 its test cases.

**Benchmark Purpose**

MeasureThat.net is used to compare the performance of different algorithms for calculating hashes or equality checks on JavaScript objects. The goal is to determine which approach is faster in various scenarios.

**Script Preparation Code**

The script preparation code defines two JavaScript objects, `context1` and `context2`, with similar properties and values. The main difference between the two objects is that `context1` has a nested object `bar` with an array property `arr`, while `context2` does not have this nested structure.

**Html Preparation Code**

The HTML preparation code includes three external JavaScript libraries:

* `hash-sum`: a library for calculating hashes on strings.
* `object-hash`: a library for calculating hashes on objects.
* `lodash`: a utility library that provides various functions, including `isEqual`, which is used in the benchmark.

**Test Cases**

There are three test cases:

1. **Sum**: This test case compares the result of calling `sum()` on `context1` and `context2`. The `sum()` function likely calculates the sum of all elements in an array.
2. **Object-hash**: This test case compares the result of calling `objectHash()` on `context1` and `context2`.
3. **isEqual**: This test case compares the result of calling `_.isEqual()` on `context1` and `context2`. The `_` refers to the Lodash library.

**Options Compared**

The three test cases compare different approaches for calculating hashes or equality checks:

* **Sum**: compares the sum of all elements in an array.
* **Object-hash**: compares the hash value of a JavaScript object, which is a unique identifier for the object.
* **isEqual**: compares two objects for equality, checking if they have the same properties and values.

**Pros and Cons**

Here are some pros and cons of each approach:

* **Sum**:
	+ Pros: simple to implement, can be used for arrays with numerical values.
	+ Cons: may not work well for non-numerical values or objects with complex structures.
* **Object-hash**: 
	+ Pros: suitable for JavaScript objects, can handle nested properties and arrays.
	+ Cons: may be slower than other approaches due to the overhead of calculating a hash value.
* **isEqual**:
	+ Pros: easy to implement, works well for simple object comparisons.
	+ Cons: may not work correctly for complex object structures or arrays with non-unique values.

**Other Considerations**

When choosing an approach, consider the following factors:

* Data structure and complexity
* Performance requirements
* Compatibility with different browsers and environments

**Alternatives**

If you need to perform hash calculations or equality checks on JavaScript objects, here are some alternative approaches:

* **JSON.stringify()**: can be used to create a string representation of an object, which can then be hashed.
* **Buffer.compare()**: can be used to compare the contents of two buffers (e.g., arrays).
* **Web Crypto API**: provides a secure way to generate and compare hash values.

Keep in mind that each approach has its own strengths and weaknesses, and the choice ultimately depends on your specific use case and requirements.

Related benchmarks:

hash-sum vs object-hash vs _.isEqual (version: 0)

Comparing performance of: Sum vs Object-hash vs isEqual

Created: 3 years ago by: Guest

Jump to the latest result

Sum

Object-hash

isEqual

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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