Benchmark: Character loop vs split

Script Preparation code:

window.string1 = 'Hello my beatiful world here sdf asdfaasdfasd safasdfasdfasdfasdfa asdfas asdfasdfasdf'

Tests:

split
let result = window.string1.split(' ');
character loop
let result = []; let word = ''; for (let i = 0; i < window.string1.length; i++) { let char = window.string1.charAt(i); if (char === ' ') { result.push(word); word = '' } else { word += char; } }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
split
character loop

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

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

LLMs can make mistakes. Check important info.

Let's dive into the explanation.

The provided JSON represents a JavaScript microbenchmark test case on MeasureThat.net. The benchmark tests two different approaches to split a string: using the `split()` method and implementing a custom loop to iterate through each character of the string.

**Benchmark Definition**

The script preparation code is:

```javascript
window.string1 = 'Hello my beatiful world here sdf asdfaasdfasd safasdfasdfasdfasdfa asdfas asdfasdfasdf';
```

This line sets a variable `string1` on the global window object with a sample string value.

**Options being compared**

There are two options being compared:

1. **Split() method**: This uses the built-in `split()` method of JavaScript strings, which splits the string into an array of substrings based on a regular expression or a literal string.
2. **Custom loop**: This implementation uses a traditional for loop to iterate through each character of the string and checks if it's a space, pushing the current word onto the result array when it encounters one.

**Pros and Cons**

* **Split() method:**
	+ Pros:
		- Fast and efficient
		- Built-in functionality makes it easy to use
	+ Cons:
		- May not be suitable for all edge cases or custom string processing
* **Custom loop:**
	+ Pros:
		- More control over the iteration process
		- Can handle specific character patterns or string manipulations
	+ Cons:
		- Requires more code and may be slower than the built-in `split()` method

**Library usage**

There is no explicit library mentioned in this benchmark. The `split()` method uses the JavaScript built-in regular expression functionality.

**Special JS feature/syntax**

There are no specific JavaScript features or syntaxes mentioned in this benchmark, such as ES6 classes, async/await, or modern functional programming concepts.

**Other alternatives**

Other possible approaches to split a string might include:

* Using a library like Lodash's `split` function
* Implementing a custom regex-based solution
* Using a templating engine like Handlebars

However, the built-in `split()` method and the custom loop approach are likely among the most common and effective ways to split a string in JavaScript.

In summary, this benchmark tests two common approaches to splitting a string: using the built-in `split()` method versus implementing a custom loop. The results will help users determine which approach is faster for their specific use case.

Related benchmarks:

Character loop vs split (version: 0)

Comparing performance of: split vs character loop

Created: 5 years ago by: Guest

Jump to the latest result

split

character loop

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):