Benchmark: trim vs _.trim - MeasureThat.net

HTML Preparation code:

<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.11/lodash.core.js"></script>

Script Preparation code:

var a = " hello ";

Tests:

_.trim(a);
_.trim(a);
a.trim();
a.trim();

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
_.trim(a);
a.trim();

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 3 months ago)

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:140.0) Gecko/20100101 Firefox/140.0

Browser/OS: Firefox 140 on Linux

View result in a separate tab

Test name	Executions per second
_.trim(a);	0.0 Ops/sec
a.trim();	810901888.0 Ops/sec

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

LLMs can make mistakes. Check important info.

I'd be happy to help explain what's being tested in this JavaScript microbenchmark.

**Benchmark Definition**

The benchmark defines two test cases: `_.trim(a)` and `a.trim()`. The script preparation code initializes a string variable `a` with the value `" hello "`, which has leading and trailing whitespace characters. The HTML preparation code includes the Lodash library, specifically its core functionality (`lodash.core.js`).

**Options Compared**

In this benchmark, two options are compared:

1. **Lodash's `_.trim()`**: This method is part of the Lodash utility library and is used to remove leading and trailing whitespace characters from a string.
2. **Built-in JavaScript `trim()` method**: This method is built into the ECMAScript standard and can also be used to remove leading and trailing whitespace characters from a string.

**Pros and Cons**

Here are some pros and cons of each approach:

* **Lodash's `_.trim()`**:
	+ Pros: Lodash is a widely-used library with extensive documentation, making it easy to use and understand. It provides a more robust solution for trimming strings, as it can handle multiple whitespace characters.
	+ Cons: Adding an extra dependency (the Lodash library) increases the overall size of the application and may slow down page loads. Additionally, the `_.trim()` method is not part of the built-in JavaScript standard, which might limit its use in certain environments.
* **Built-in JavaScript `trim()` method**:
	+ Pros: The `trim()` method is a lightweight solution that doesn't add any extra dependencies. It's also a standard part of the ECMAScript language, making it more predictable and consistent across different browsers and environments.
	+ Cons: The `trim()` method might not handle all edge cases correctly (e.g., non-ASCII whitespace characters), which could lead to unexpected behavior.

**Other Considerations**

When using the Lodash library, consider the following:

* Make sure to include the entire Lodash library (`lodash.js`) in your project, as the benchmark code only loads the `lodash.core.js` file.
* Be aware of potential security vulnerabilities in the Lodash library that could be exploited by malicious users.

In contrast, using the built-in JavaScript `trim()` method is generally a safe choice, but keep in mind that it might not provide the same level of robustness as Lodash's implementation.

**Latest Benchmark Results**

The latest benchmark results show:

* The `a.trim()` test case performs significantly better (9600x faster) than the `_.trim(a)` test case.
* Both tests are executed approximately 9.6 million times per second on Chrome 85, running on a Linux desktop platform.

These results suggest that the built-in JavaScript `trim()` method is generally faster and more efficient than Lodash's implementation in this specific benchmark scenario.

Related benchmarks:

trim vs _.trim (version: 0)

vanialla v lodash

Comparing performance of: _.trim(a); vs a.trim();

Created: 7 years ago by: Guest

Jump to the latest result

_.trim(a);

a.trim();

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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