Benchmark: Remove by splice vs copyWithin vs filter vs delete

HTML Preparation code:

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</script>

Script Preparation code:

/* these functions assume that only one element matches, so they do not loop! */

function removeBySplice (array, element) {
  var index = array.indexOf( element );
  if (index !== -1) {
  	array.splice( index, 1 );
  }
}

function removeByCopyWithin (array, element) {
  var index = array.indexOf( element );
  if (index !== -1) {
  	array.copyWithin( index, index + 1 );
    --array.length;
  }
}

function removeByFilter (array, element) {
  array = array.filter( el => el !== element );
}

function removeByDelete (array, element) {
  delete array[element];
}

Tests:

Remove by splice
removeBySplice( array, "uyjxmtqnrzvj7mkyqmtoqolxr" ); removeBySplice( array, "m1c6kzws0iubt8g0zlsug14i" ); removeBySplice( array, "4wlivut0n1ht80rs5lyf7ds4i" );
Remove by copy within
removeByCopyWithin( array, "uyjxmtqnrzvj7mkyqmtoqolxr" ); removeByCopyWithin( array, "m1c6kzws0iubt8g0zlsug14i" ); removeByCopyWithin( array, "4wlivut0n1ht80rs5lyf7ds4i" );
Remove by filter
removeByFilter( array, "uyjxmtqnrzvj7mkyqmtoqolxr" ); removeByFilter( array, "m1c6kzws0iubt8g0zlsug14i" ); removeByFilter( array, "4wlivut0n1ht80rs5lyf7ds4i" );
Remove by delete
removeByDelete( array, "uyjxmtqnrzvj7mkyqmtoqolxr" ); removeByDelete( array, "m1c6kzws0iubt8g0zlsug14i" ); removeByDelete( array, "4wlivut0n1ht80rs5lyf7ds4i" );

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Remove by splice
Remove by copy within
Remove by filter
Remove by delete

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36

Browser/OS: Chrome 133 on Windows

View result in a separate tab

Test name	Executions per second
Remove by splice	2785957.2 Ops/sec
Remove by copy within	2793470.2 Ops/sec
Remove by filter	915321.2 Ops/sec
Remove by delete	28526010.0 Ops/sec

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

LLMs can make mistakes. Check important info.

I can see that you're providing a large amount of text data in JSON format, along with some test cases and benchmark results.

To answer your question, I will extract the relevant information from the provided text data.

**Individual Test Cases:**

Here are the individual test cases:

1. **Remove by Splice**
```
removeBySplice( array, "uyjxmtqnrzvj7mkyqmtoqolxr" );
removeBySplice( array, "m1c6kzws0iubt8g0zlsug14i" );
removeBySplice( array, "4wlivut0n1ht80rs5lyf7ds4i" );
```

2. **Remove by Copy Within**
```
removeByCopyWithin( array, "uyjxmtqnrzvj7mkyqmtoqolxr" );
removeByCopyWithin( array, "m1c6kzws0iubt8g0zlsug14i" );
removeByCopyWithin( array, "4wlivut0n1ht80rs5lyf7ds4i" );
```

3. **Remove by Filter**
```
removeByFilter( array, "uyjxmtqnrzvj7mkyqmtoqolxr" );
removeByFilter( array, "m1c6kzws0iubt8g0zlsug14i" );
removeByFilter( array, "4wlivut0n1ht80rs5lyf7ds4i" );
```

4. **Remove by Delete**
```
removeByDelete( array, "uyjxmtqnrzvj7mkyqmtoqolxr" );
removeByDelete( array, "m1c6kzws0iubt8g0zlsug14i" );
removeByDelete( array, "4wlivut0n1ht80rs5lyf7ds4i" );
```

**Latest Benchmark Result:**

Here is the latest benchmark result:

```
[
    {
        "RawUAString": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.63 Safari/537.36 Edg/93.0.961.38",
        "Browser": "Chrome 93",
        "DevicePlatform": "Desktop",
        "OperatingSystem": "Windows",
        "ExecutionsPerSecond": 1642351.25,
        "TestName": "Remove by delete"
    },
    {
        "RawUAString": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.63 Safari/537.36 Edg/93.0.961.38",
        "Browser": "Chrome 93",
        "DevicePlatform": "Desktop",
        "OperatingSystem": "Windows",
        "ExecutionsPerSecond": 984248.125,
        "TestName": "Remove by copy within"
    },
    {
        "RawUAString": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.63 Safari/537.36 Edg/93.0.961.38",
        "Browser": "Chrome 93",
        "DevicePlatform": "Desktop",
        "OperatingSystem": "Windows",
        "ExecutionsPerSecond": 972501.125,
        "TestName": "Remove by splice"
    },
    {
        "RawUAString": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.63 Safari/537.36 Edg/93.0.961.38",
        "Browser": "Chrome 93",
        "DevicePlatform": "Desktop",
        "OperatingSystem": "Windows",
        "ExecutionsPerSecond": 352073.625,
        "TestName": "Remove by filter"
    }
]
```

Please let me know which specific question you would like me to answer!

Related benchmarks:

Remove by splice vs copyWithin vs filter vs delete (version: 0)

Comparing performance of: Remove by splice vs Remove by copy within vs Remove by filter vs Remove by delete

Created: 4 years ago by: Guest

Jump to the latest result

Remove by splice

Remove by copy within

Remove by filter

Remove by delete

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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