Benchmark: lodash isboolean vs typeof

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.21/lodash.min.js'></script>

Script Preparation code:

var x = true

Tests:

lodash
var y = _.isBoolean(x)
typeof
var y = (typeof(x) === 'boolean')

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
lodash
typeof

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser/OS: Chrome 120 on Windows

View result in a separate tab

Test name	Executions per second
lodash	3834618.2 Ops/sec
typeof	11144679.0 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down the benchmark definition and test cases to understand what is being tested.

**Benchmark Definition JSON**

The benchmark definition represents a comparison between two approaches:

1. `_.isBoolean(x)` (using Lodash library)
2. `(typeof x === 'boolean')` (using JavaScript's built-in `typeof` operator)

**Purpose of the Benchmark**

The purpose of this benchmark is to compare the performance of these two approaches in determining whether a variable `x` is a boolean value.

**Options Compared**

Two options are being compared:

1. **Lodash's `isBoolean` function**: This function takes a value as an argument and returns `true` if it is a boolean value, and `false` otherwise.
2. **JavaScript's built-in `typeof` operator**: This operator returns the type of a variable (e.g., "string", "number", "boolean").

**Pros and Cons of Each Approach**

1. **Lodash's `isBoolean` function**:
	* Pros: Easy to use, well-documented, and part of a popular library.
	* Cons: Adds an additional dependency, which may slow down page load times.
2. **JavaScript's built-in `typeof` operator**:
	* Pros: No dependencies or added overhead, easy to understand and implement.
	* Cons: May not be as readable or maintainable as the Lodash approach.

**Library (Lodash)**

The Lodash library is a popular JavaScript utility library that provides various functions for tasks such as array manipulation, object manipulation, and more. The `isBoolean` function is part of this library and can be used to check if a value is a boolean.

**Special JS Feature or Syntax**

There are no special features or syntax mentioned in the benchmark definition that require specific knowledge or expertise to understand.

**Other Alternatives**

If you want to compare other approaches for determining whether a variable is a boolean, some alternatives could include:

* Using `Boolean()` function: `Boolean(x)`
* Using `==` or `===` operators with explicit type coercion (e.g., `(x === 'boolean')`)
* Implementing a custom boolean check function

However, these alternatives may not be as efficient or readable as the Lodash approach or JavaScript's built-in `typeof` operator.

**Benchmark Preparation Code and HTML**

The preparation code includes:

* A variable `x` initialized to `true`
* The Lodash library is included via a script tag

This code sets up the test case by defining the value of `x`, which will be used for the subsequent tests.

Related benchmarks:

lodash isboolean vs typeof (version: 0)

Comparing performance of: lodash vs typeof

Created: 2 years ago by: Guest

Jump to the latest result

lodash

typeof

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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