Benchmark: lodash vs native replace

HTML Preparation code:

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

Script Preparation code:

var test = "O‘Conel O’Hare O`Maley"

Tests:

lodash replace
_.replace(test, /[‘’`]/g, "'")
native replace
test.replace(/[‘’`]/g, "'")

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
lodash replace
native replace

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 4 months ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.127 Safari/537.36 OPR/60.3.3004.55692

Browser/OS: Opera 60 on Linux

View result in a separate tab

Test name	Executions per second
lodash replace	217249.2 Ops/sec
native replace	224101.5 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 provided JSON data and explain what's being tested.

**Benchmark Definition**

The benchmark is comparing two approaches to replace special characters in a string: using Lodash (a popular JavaScript utility library) and the native JavaScript `replace()` method.

**Options compared**

Two options are being compared:

1. **Lodash Replace**: This option uses the `_.replace()` function from the Lodash library. The purpose of this function is to replace occurrences of a pattern in a string.
2. **Native Replace**: This option uses the built-in JavaScript `replace()` method, which achieves the same goal as Lodash's `_.replace()`, but without relying on an external library.

**Pros and Cons**

**Lodash Replace:**

Pros:

* Easier to write and maintain complex replacement logic
* Often provides additional utility functions that can be useful in other parts of the codebase

Cons:

* Adds overhead due to the need to include and load the Lodash library
* May introduce performance overhead due to the complexity of the library's implementation

**Native Replace:**

Pros:

* No overhead or dependencies on an external library
* Often faster and more efficient than using a library, especially for simple replacement logic

Cons:

* Requires explicit knowledge of the replacement pattern and string manipulation techniques
* May be less readable or maintainable for complex replacement logic

**Other considerations**

One special consideration here is that both approaches use a regular expression to match the special characters (`[‘’`]`). Regular expressions can be powerful, but also complex and error-prone. In this case, it seems like Lodash's implementation is using a specific optimization (called "ASCII escaping") to handle the double quotes, which avoids encoding them as Unicode escape sequences.

**Library: Lodash**

Lodash is a popular JavaScript utility library that provides a wide range of functions for tasks such as string manipulation, array operations, and more. The `_.replace()` function in this benchmark is just one example of how Lodash can be used to simplify common programming tasks.

**Special JS feature/ syntax: None mentioned**

No special JavaScript features or syntax are being tested in this benchmark.

**Other alternatives**

If you wanted to test the native replacement method, you could use a simple string manipulation technique like this:
```javascript
function replaceNative(test, pattern, replacement) {
  return test.split(pattern).join(replacement);
}
```
However, this implementation would likely be slower and less efficient than using the built-in `replace()` method.

As for Lodash alternatives, there are many other utility libraries available that provide similar functionality. Some popular options include:

* Underscore.js (similar to Lodash, but with a slightly different API)
* Moment.js (for date manipulation and formatting)
* Ramda (a more functional programming-focused library)

However, for simple string replacement tasks like this benchmark, the built-in JavaScript `replace()` method is often the simplest and most efficient choice.

Related benchmarks:

lodash vs native replace (version: 0)

Comparing performance of: lodash replace vs native replace

Created: 6 years ago by: Guest

Jump to the latest result

lodash replace

native replace

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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