Benchmark: Test split - MeasureThat.net

Tests:

string split
var test = "a b c d e f g h i j".split(" ")
object values
var test = Object.values({a:1,b:2,c:3,d:4,e:5,f:6,g:7,h:8,i:9,h:10})

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
string split
object values

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.101 Safari/537.36

Browser/OS: Chrome 91 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
string split	5440850.0 Ops/sec
object values	1614177.1 Ops/sec

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

LLMs can make mistakes. Check important info.

**Overview of the Benchmark**

MeasureThat.net is a website where users can create and run JavaScript microbenchmarks to compare the performance of different approaches on various platforms. The benchmark provided consists of two test cases: string splitting and object values extraction.

**Test Cases**

The first test case, "string split", measures the performance of splitting a string into an array using the `split()` method. The second test case, "object values", measures the performance of extracting values from an object using the `Object.values()` method.

**Options Compared**

In both test cases, the following options are compared:

* **String Splitting:**
	+ Using the `split()` method with a regular expression (e.g., `"a b c d e f g h i j".split(" ")`)
	+ Without using the `split()` method ( manual iteration through the string)
* **Object Values:**
	+ Using the `Object.values()` method
	+ Manual iteration through the object's properties

**Pros and Cons of Each Approach**

Here are some pros and cons of each approach:

* **String Splitting:**
	+ Using `split()`: Pros - concise and efficient; Cons - may not work as expected for all edge cases (e.g., null or undefined separator), and performance can be slower due to the overhead of regular expressions.
	+ Manual iteration: Pros - more control over the process, but requires more code and is generally slower.
* **Object Values:**
	+ Using `Object.values()`: Pros - concise and efficient; Cons - may not work as expected for objects with inheritance or prototype chains (e.g., `Object.prototype.hasOwnProperty.call()`).
	+ Manual iteration: Pros - more control over the process, but requires more code and is generally slower.

**Library Usage**

In the "object values" test case, the `Object.values()` method is used. This method is a part of the ECMAScript standard and returns an array of a given object's own enumerable property values. The purpose of this library is to provide a concise way to extract values from objects.

**Special JS Features**

In both test cases, no special JavaScript features or syntax are mentioned that require additional explanation.

**Alternatives**

Other alternatives for measuring the performance of string splitting and object values extraction could include:

* Using other string manipulation methods (e.g., `Array.prototype.map()` with a callback function)
* Using a library like Lodash (which provides `str.split()` and `pick.values()`)

Related benchmarks:

Test split (version: 0)

Comparing performance of: string split vs object values

Created: 3 years ago by: Guest

Jump to the latest result

string split

object values

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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