Benchmark: _.get lodash vs babel optional chaining

HTML Preparation code:

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

Tests:

_.get lodash
const props = { stops: [ { location: { address: '123 Main Street', }, }, ], }; for (let i = 0; i < 50; i++) { const address = _.get(props, 'address'); }
Compiled babel optional chaining
"use strict"; const props = { stops: [{ location: { address: '123 Main Street' } }] }; for (let i = 0; i < 50; i++) { var _props$stops$, _props$stops$$locatio; const address = props === null || props === void 0 ? void 0 : (_props$stops$ = props.stops[0]) === null || _props$stops$ === void 0 ? void 0 : (_props$stops$$locatio = _props$stops$.location) === null || _props$stops$$locatio === void 0 ? void 0 : _props$stops$$locatio.address; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
_.get lodash
Compiled babel optional chaining

Fastest: N/A

Slowest: N/A

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

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Let's break down the benchmark and explain what's being tested.

**Benchmark Overview**

The benchmark compares the performance of two approaches: using Lodash's `_.get()` method with optional chaining, and using Babel's compiled JavaScript code with optional chaining.

**Lodash _.get() Method**

The first test case uses Lodash's `_.get()` method to access a nested property in an object. The benchmark prepares a sample object `props` with a nested property `address`. The test then iterates 50 times, calling `_.get(props, 'address')` each time.

In the compiled JavaScript code, the equivalent logic is implemented using optional chaining (`?.`) and the nullish coalescing operator (`??`). This allows us to access the `address` property without throwing an error if it's missing.

**Babel Compiled JavaScript Code**

The second test case uses Babel's compiled JavaScript code with optional chaining. The benchmark prepares a sample object `props` with a nested property `address`. The test then iterates 50 times, using a custom function to access the `address` property.

In this implementation, we use a combination of null checks and optional chaining to access the `address` property. This allows us to avoid errors when accessing nested properties.

**Comparison**

The benchmark compares the performance of these two approaches:

* Lodash's `_.get()` method with optional chaining
* Babel's compiled JavaScript code with optional chaining

**Pros and Cons**

Here are some pros and cons for each approach:

Lodash _.get() Method:

Pros:

* Concise and readable syntax
* Well-documented and widely used library

Cons:

* May have a larger runtime footprint due to the overhead of a JavaScript library
* Not as optimized for performance as native code

Babel Compiled JavaScript Code:

Pros:

* Optimized for performance by the Babel compiler
* Can be more efficient than using an external library

Cons:

* More verbose syntax compared to Lodash's `_.get()` method
* Requires a separate toolchain (e.g., Babel, Webpack) to compile and run the code

**Library: Lodash**

Lodash is a popular JavaScript utility library that provides a wide range of functions for tasks such as string manipulation, array manipulation, and more. In this benchmark, Lodash's `_.get()` method is used to access nested properties in objects.

**Special JS Feature/Syntax: Optional Chaining**

Optional chaining (`?.`) is a new syntax feature introduced in ECMAScript 2020 that allows you to access nested properties without throwing an error if they're missing. The nullish coalescing operator (`??`) is another new syntax feature that returns the first operand if it's not null or undefined, and the second operand otherwise.

These features are supported by modern browsers, including Chrome 106, which is used in this benchmark.

**Other Alternatives**

If you don't want to use Lodash or Babel's compiled JavaScript code, here are some alternative approaches:

* Use a different library (e.g., moment.js) that provides similar functionality
* Implement the logic manually using if-else statements and property accessors
* Use a Just-In-Time (JIT) compiler like SpiderMonkey or V8 to optimize the performance of your code

Keep in mind that each approach has its own trade-offs, and the best choice depends on your specific use case and requirements.

Related benchmarks:

_.get lodash vs babel optional chaining (version: 0)

Comparing performance of: _.get lodash vs Compiled babel optional chaining

Created: 3 years ago by: Guest

Jump to the latest result

_.get lodash

Compiled babel optional chaining

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):