Benchmark: lodash isEmpty vs native for empty strings

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.min.js"></script>

Script Preparation code:

window.ttext = "a string";

Tests:

_.isEmpty
if (!_.isEmpty(window.ttext));
native
if (window.ttext);

Historical Performance Data aggregated from 11 community runs

Desktop Results:

Chrome 11 runs

native

167.3M/s

_.isEmpty

147.6M/s

Fastest: native (1.1x faster)

View exact numbers

✓ native: 167,314,880 ops/sec
• _.isEmpty: 147,597,184 ops/sec

Results show median performance across all community submissions. Run this benchmark yourself to verify on your device.

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
_.isEmpty
native

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36

Browser/OS: Chrome 138 on Windows

View result in a separate tab

native

167.3M/s

_.isEmpty

155.6M/s

View exact numbers

Test name	Executions per second
✓ native	167,314,880 Ops/sec
_.isEmpty	155,577,776 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 and its test cases.

**What is tested?**

The provided benchmark compares two approaches to check if a string is empty: using Lodash's `isEmpty` function and a native JavaScript approach.

**Options compared**

There are two options being compared:

1. **Lodash's `isEmpty` function**: This function takes an object or value as input and returns a boolean indicating whether the value is empty.
2. **Native JavaScript approach**: This approach uses the strict equality operator (`===`) to check if the string is equal to its empty equivalent (`""`).

**Pros and Cons**

**Lodash's `isEmpty` function**

Pros:

* Portable: The function works on any platform, as it only depends on JavaScript's built-in functionality.
* Easy to use: The function takes an object or value as input, making it convenient for developers who are already familiar with Lodash.

Cons:

* Performance overhead: Using a library like Lodash may introduce additional overhead due to the need to load and initialize the library.
* Additional dependency: Developers must include the Lodash library in their project to use this function.

**Native JavaScript approach**

Pros:

* Lightweight: This approach does not require any additional dependencies or libraries, making it a lightweight option.
* Fast execution: The native JavaScript approach is likely to be faster since it only uses basic JavaScript functionality.

Cons:

* Platform-specific: The `===` operator may behave differently on certain platforms, which could affect the accuracy of the results.

**Library (Lodash)**

Lodash is a popular JavaScript utility library that provides a wide range of functions for tasks like array manipulation, object transformation, and more. In this case, the `isEmpty` function is used to check if an object or value is empty.

**Special JS feature (ES6 template literals)**

The benchmark uses ES6 template literals (`window.ttext = "a string";`) to set a string variable. This feature allows for more concise and readable code when working with strings.

**Other alternatives**

If you prefer not to use Lodash, you can implement the `isEmpty` function using JavaScript's built-in functions, such as:

```javascript
function isEmpty(obj) {
  return Object.keys(obj).length === 0;
}
```

Alternatively, you could use other libraries like Underscore.js or Moment.js to perform similar functionality.

**Benchmark preparation code**

The benchmark preparation code sets a string variable `window.ttext` and includes the Lodash library from a CDN in the HTML file. This ensures that both test cases have access to the same environment and can accurately compare the performance of their respective implementations.

lodash isEmpty vs native for empty strings (version: 0)

Comparing performance of: `_.isEmpty vs native`

Created: 4 years ago by: Registered User

Go to the latest result

_.isEmpty

native

Historical Performance Data aggregated from 11 community runs

Desktop Results:

Chrome 11 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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

lodash isEmpty vs native for empty strings (version: 0)

Comparing performance of: _.isEmpty vs native

Created: 4 years ago by: Registered User

Go to the latest result

_.isEmpty

native

Historical Performance Data aggregated from 11 community runs

Desktop Results:

Chrome 11 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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

Related benchmarks

Comparing performance of: `_.isEmpty vs native`