Benchmark: Testing gt vs ne operators

Script Preparation code:

var arr = ['a', 'b', 'c'];

Tests:

found ne
arr.indexOf('c') !== -1
not found ne
arr.indexOf('d') !== -1
found gt
arr.indexOf('c') >=0
not found gt
arr.indexOf('d') >=0
ne first
-1 !== arr.indexOf('c')
ne first not found
-1 !== arr.indexOf('d')

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
found ne
not found ne
found gt
not found gt
ne first
ne first not found

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36

Browser/OS: Chrome 116 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
found ne	13999888.0 Ops/sec
not found ne	14191353.0 Ops/sec
found gt	14634190.0 Ops/sec
not found gt	14414726.0 Ops/sec
ne first	14350419.0 Ops/sec
ne first not found	14137036.0 Ops/sec

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

LLMs can make mistakes. Check important info.

**Benchmark Overview**

MeasureThat.net is a website that allows users to create and run JavaScript microbenchmarks. The provided benchmark tests the performance difference between various comparison operators in JavaScript: `gt` (greater than), `ne` (not equal to), and their negations (`<=` and `!=`). The test uses an array of strings, "arr", with a single element "c".

**Options Compared**

The benchmark compares the following options:

1. **GT**: `arr.indexOf('c') >= 0`
2. **NE**: `arr.indexOf('c') !== -1`
3. **NE First**: `-1 !== arr.indexOf('c')`

These options are compared to measure their performance in terms of execution speed.

**Pros and Cons**

Here's a brief analysis of each option:

* **GT (>=)**:
	+ Pros: Simple and widely used in JavaScript.
	+ Cons: May be slower due to the need for an additional comparison with 0.
* **NE (!==)**:
	+ Pros: Faster than GT, as it only checks if the result is not -1.
	+ Cons: May be less readable due to its non-standard syntax.
* **NE First (-1 !==)**:
	+ Pros: Faster than GT and NE, as it avoids unnecessary comparisons.
	+ Cons: Less readable due to its unique syntax.

**Library Usage**

There is no explicit library usage in this benchmark. However, `indexOf()` is a built-in JavaScript method that returns the index of the first occurrence of a specified value in an array. It's likely that this method is optimized for performance by the JavaScript engine.

**Special JS Feature/Syntax**

There are no special JavaScript features or syntax used in this benchmark. The tests only use standard JavaScript operators and syntax.

**Other Alternatives**

Some alternative approaches to testing comparison operator performance could include:

* Using a different data structure, such as an object or set.
* Adding additional complexity to the test case, such as searching for multiple values.
* Comparing performance using different profiling tools or frameworks.

However, these alternatives are not implemented in this specific benchmark, and it's likely that they would introduce additional complexity and overhead without significant benefits.

Related benchmarks:

Testing gt vs ne operators (version: 0)

Testing gt vs ne operators

Comparing performance of: found ne vs not found ne vs found gt vs not found gt vs ne first vs ne first not found

Created: one year ago by: Guest

Jump to the latest result

found ne

not found ne

found gt

not found gt

ne first

ne first not found

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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