Benchmark: immutable vs lodash vs ... 3

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.21/lodash.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/immutable/4.0.0-rc.12/immutable.min.js"></script>

Script Preparation code:

var data = {};

Tests:

immutable
var result = Immutable.Map(data).set('a', '1').toObject();
lodash
var result = _.set(data, 'a', '1');
...
var result = {...data, 'a': '1'};

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
immutable
lodash
...

Fastest: N/A

Slowest: N/A

Latest run results:

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Autogenerated LLM Summary (model gemma2:9b, generated one year ago):

LLMs can make mistakes. Check important info.

This benchmark compares three different methods for updating an object property: using Immutable.js, Lodash, and the spread operator.

Let's break down each approach:

**1. `Immutable`:**

* **Code:** `var result = Immutable.Map(data).set('a', '1').toObject();`
* **Description:** 
    *  Creates an immutable map from the existing data object (`data`).
    * Uses the `.set()` method to update the value at key 'a' to '1'. 
    * Converts the resulting immutable map back into a regular JavaScript object using `.toObject()`.

**Pros:**
* Immutable objects prevent accidental modifications, which can be crucial for maintaining data integrity.
* Immutable.js provides efficient methods for updating and manipulating data structures without creating copies of entire objects.

**Cons:**
*  Can have a steeper learning curve compared to native JavaScript approaches.
* Conversion between immutable and regular objects adds an extra step.

**2. `Lodash`:**

* **Code:** `var result = _.set(data, 'a', '1');`
* **Description:** 
    * Uses the `_.set()` function from Lodash to update the value at key 'a' in the `data` object directly.

**Pros:**
* Lodash is a widely used utility library with many helpful functions for working with data.
* The `.set()` function provides a concise way to update object properties.

**Cons:**
* Requires including the Lodash library in your project, adding some overhead.

**3. Spread Operator (`...`)**:

* **Code:** `var result = {...data, 'a': '1'};`
* **Description:**
    *  Creates a new object by spreading all properties from the `data` object and explicitly adding the new key-value pair 'a': '1'.

**Pros:**
* Simple and concise syntax.

**Cons:** 
* Doesn't inherently create immutable objects, so potential for unintended modifications still exists.

**Other Alternatives**

While this benchmark focuses on three specific methods, there are other ways to update object properties in JavaScript:

* **Using Object.assign():**  Creates a new object by merging properties from existing objects. However, it can be less efficient than direct assignment for small updates.
* **Object Prototypes:** Allows you to define behaviors and properties shared among objects. While powerful, it's more complex for simple updates.

**Conclusion**

The benchmark results show that Lodash offers the fastest performance in this specific scenario.  Choosing the best approach depends on your project's needs:
* **Performance critical:** Lodash might be preferred.
* **Immutable data is essential:** Immutable.js would be a better choice.
* **Simplicity and ease of use:** The spread operator could be sufficient.

Related benchmarks:

immutable vs lodash vs ... 3 (version: 0)

Comparing performance of: immutable vs lodash vs ...

Created: 5 years ago by: Guest

Jump to the latest result

immutable

lodash

...

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

Autogenerated LLM Summary (model gemma2:9b, generated one year ago):