Benchmark: lodash.get VS getSafe

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var getSafe = (cb, def) => {
  try { 
    return cb();
  }catch(e){
    return def
  };
};

var obj = {a: {b: {c: {d: {e: {f: [{a: 1}]}}}}}};

Tests:

Native
for(var i = 0; i < 100000; i++){ getSafe(() => obj.a.b.c.d.e.f[0].a); }
Lodash
for(var i = 0; i < 100000; i++){ _.get(obj, 'a.b.c.d.e.f[0].a') }

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.

Let's dive into the explanation of the provided JavaScript microbenchmark on MeasureThat.net.

**Benchmark Overview**

The benchmark is designed to compare the performance of two approaches: native JavaScript and Lodash's `get` function. The goal is to measure which approach is faster for a specific use case.

**Options Compared**

Two options are being compared:

1. **Native**: This option uses the built-in JavaScript features to access the nested object.
2. **Lodash**: This option uses the popular utility library Lodash's `get` function, which provides a way to safely navigate objects and handle null or undefined values.

**Pros and Cons of Each Approach**

**Native:**

Pros:

* Lightweight and compact code
* No external dependencies required

Cons:

* Requires manual error handling for potential errors
* Might be slower due to the overhead of trying to access nested properties

**Lodash:**

Pros:

* Provides a safe and convenient way to navigate objects
* Handles null or undefined values by default
* Can be faster than native approach if the error handling is minimal

Cons:

* Requires an external dependency (Lodash library)
* Adds some overhead due to the function call and object lookup

**Library: Lodash**

Lodash is a popular JavaScript utility library that provides a wide range of functions for tasks such as array manipulation, string manipulation, and object manipulation. The `get` function is specifically designed to safely navigate objects by providing a default value if the path does not exist.

In this benchmark, Lodash's `get` function is used to access the nested object `obj.a.b.c.d.e.f[0].a`, which can throw an error if any of the properties do not exist. The native approach requires manual error handling using try-catch blocks, while Lodash's `get` function handles errors automatically.

**Special JS Feature/Syntax**

The benchmark uses a special syntax for the `for` loop and variable declaration to make it more concise and readable. This syntax is supported in modern JavaScript environments (ECMAScript 2015+).

**Other Alternatives**

If you want to write similar benchmarks, here are some alternatives:

* **V8Benchmark**: A popular benchmarking framework developed by Google for measuring the performance of JavaScript engines.
* **JSPerf**: Another widely used benchmarking tool for comparing the performance of JavaScript code in different browsers and environments.

When writing your own microbenchmarks, consider using a standardized framework like MeasureThat.net or V8Benchmark to ensure consistency and accurate results.

Related benchmarks:

lodash.get VS getSafe (version: 0)

Comparing performance of: Native vs Lodash

Created: 7 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):