Benchmark: Lodash.get vs Native Check Property Exists

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/lodash/4/lodash.min.js"></script>

Script Preparation code:

var data = { foo: { bar: { baz: 'hello' } } }

function native(obj) {
  return (obj && obj.foo && obj.foo.bar && obj.foo.bar.baz) !== undefined;
}

function lodash(obj) {
   return _.get(obj, 'foo.bar.baz') !== undefined; 
}

Tests:

Native
native(data)
Lodash
lodash(data)

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

This benchmark does not have any results yet. Be the first one to run it!

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

LLMs can make mistakes. Check important info.

I'll break down the provided benchmark and explain what's being tested, compared, and considered.

**Benchmark Overview**

The benchmark compares two approaches to check if a property exists in an object:

1. **Native Check Property Exists**: A custom function `native` that uses the "&&" operator chain to access nested properties of an object.
2. **Lodash.get**: A function from the Lodash library (`_.get`) that performs similar path traversal as the native approach.

**Comparison**

The benchmark compares the execution time of these two approaches on a specific dataset (`data`). The goal is to determine which approach is faster.

**Pros and Cons**

1. **Native Check Property Exists**:
	* Pros: Lightweight, does not require external library dependencies.
	* Cons: May be slower due to the overhead of nested property access.
2. **Lodash.get**:
	* Pros: More readable and maintainable code structure, uses optimized path traversal algorithm.
	* Cons: Requires an additional library dependency (Lodash).

**Library Considerations**

The benchmark uses Lodash as a library to implement `_.get`. Lodash is a popular utility library for JavaScript that provides various functions for working with data structures. In this case, the `_.get` function is used to perform path traversal and return a value if the specified path exists.

**Special JS Features or Syntax**

There are no special features or syntax mentioned in the benchmark code. However, it's worth noting that some modern JavaScript engines (e.g., V8) have optimizations for certain operations, such as property access. These optimizations might affect the performance of both approaches.

**Other Alternatives**

If you need to perform similar checks, consider the following alternatives:

1. **Array.prototype.includes()**: Can be used with arrays or objects that support "includes" method.
2. **Object.prototype.hasOwnProperty()**: A more basic approach for checking if an object has a property.
3. **ES6 Optional Chaining (?.)**: Can be used to access nested properties in a more readable way.

Keep in mind that these alternatives might have different performance characteristics and use cases compared to the native check property exists and Lodash.get approaches.

Related benchmarks:

Lodash.get vs Native Check Property Exists (version: 0)

Comparing performance of: Native vs Lodash

Created: 6 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):