Benchmark: Setting of intermediate objects

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.5/lodash.min.js"></script>

Script Preparation code:

var value = 'new';
var newPath = 'a.b.c';

Tests:

Native
var newObject = newPath.split('.').reduceRight((obj, part) => ({ [part]: obj }), value);
lodash
var newObject = _.set({}, newPath, value);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Native
lodash

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

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

LLMs can make mistakes. Check important info.

Let's break down the provided benchmarking test case.

**What is being tested?**

The benchmark measures the performance difference between two approaches:

1. **Manual object creation**: This approach creates an object by manually splitting a string into parts and then using `reduceRight` to create an object with those parts as properties.
2. **Lodash's automatic version**: This approach uses Lodash, a popular JavaScript utility library, which provides a function called `set` that automatically creates objects with the specified key-value pairs.

**Options being compared**

The benchmark is comparing two options:

1. Manual object creation (Native)
2. Using Lodash's `set` function (Lodash)

**Pros and cons of each approach:**

**Manual Object Creation (Native):**

Pros:

* No dependency on a third-party library
* Control over the creation process
* Potential for optimization opportunities

Cons:

* More verbose code
* Requires manual splitting and object creation, which can be error-prone
* May not take advantage of compiler optimizations or browser-specific features

**Lodash's `set` function (Lodash):**

Pros:

* Convenient and concise way to create objects with key-value pairs
* Reduces boilerplate code
* Often provides a better performance profile due to optimized implementation

Cons:

* Requires an additional dependency on the Lodash library
* May introduce overhead due to the library's initialization process
* Less control over the creation process compared to manual object creation

**Library: Lodash**

Lodash is a popular JavaScript utility library that provides a wide range of functions for common tasks, such as string manipulation, array operations, and object creation. The `set` function is part of this library and allows creating objects with key-value pairs in a concise and readable way.

**Special JS feature or syntax: None**

There are no special JavaScript features or syntax used in this benchmarking test case.

**Other alternatives**

If you want to avoid using Lodash, you can use other libraries like `merge` functions from React or `Object.assign()` with object destructuring. However, these alternatives may not provide the same level of convenience and performance as Lodash's `set` function.

For a native implementation without any external dependencies, you can create objects manually using techniques like:

```javascript
function createObject(str) {
  const parts = str.split('.');
  let obj = {};
  for (let i = parts.length - 1; i >= 0; i--) {
    obj[parts[i]] = obj[parts[i]] || {};
  }
  return obj;
}
```

Keep in mind that this implementation may not be as performant or concise as Lodash's `set` function.

Related benchmarks:

Setting of intermediate objects (version: 0)

Testing manual object creation vs. lodash's automatic version.

Comparing performance of: Native vs lodash

Created: 5 years ago by: Guest

Jump to the latest result

Native

lodash

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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