Benchmark: Remove by slice vs copyWithin vs filter

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 deleteBySlice (array, element) {
  var index = array.indexOf( element );
  if (index !== -1) {
  	array = [...array.slice(0, index), ...array.slice(index + 1)];
  }
}

function deleteBySliceConcat (array, element) {
  var index = array.indexOf( element );
  if (index !== -1) {
  	array = array.slice(0, index).concat(array.slice(index + 1));
  }
}

function deleteByCopyWithin (array, element) {
  var index = array.indexOf( element );
  if (index !== -1) {
  	array.copyWithin( index, index + 1 );
    array.length--;
  }
}

function deleteByFilter (array, element) {
  array = array.filter( el => el !== element );
}

Tests:

Delete by Slice
deleteBySlice( array, "uyjxmtqnrzvj7mkyqmtoqolxr" ); deleteBySlice( array, "m1c6kzws0iubt8g0zlsug14i" ); deleteBySlice( array, "4wlivut0n1ht80rs5lyf7ds4i" );
Delete by copyWithin
deleteByCopyWithin( array, "uyjxmtqnrzvj7mkyqmtoqolxr" ); deleteByCopyWithin( array, "m1c6kzws0iubt8g0zlsug14i" ); deleteByCopyWithin( array, "4wlivut0n1ht80rs5lyf7ds4i" );
Delete by Filter
deleteByFilter( array, "uyjxmtqnrzvj7mkyqmtoqolxr" ); deleteByFilter( array, "m1c6kzws0iubt8g0zlsug14i" ); deleteByFilter( array, "4wlivut0n1ht80rs5lyf7ds4i" );
Delete by sliceConcat
deleteBySliceConcat( array, "uyjxmtqnrzvj7mkyqmtoqolxr" ); deleteBySliceConcat( array, "m1c6kzws0iubt8g0zlsug14i" ); deleteBySliceConcat( array, "4wlivut0n1ht80rs5lyf7ds4i" );

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Delete by Slice
Delete by copyWithin
Delete by Filter
Delete by sliceConcat

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.82 Safari/537.36

Browser/OS: Chrome 98 on Windows

View result in a separate tab

Test name	Executions per second
Delete by Slice	224591.0 Ops/sec
Delete by copyWithin	534377.6 Ops/sec
Delete by Filter	215442.5 Ops/sec
Delete by sliceConcat	556682.1 Ops/sec

Autogenerated LLM Summary (model gemma2:9b, generated one month ago):

LLMs can make mistakes. Check important info.

Related benchmarks:

Remove by slice vs copyWithin vs filter (version: 0)

Deletion of an element from an array.

Comparing performance of: Delete by Slice vs Delete by copyWithin vs Delete by Filter vs Delete by sliceConcat

Created: 3 years ago by: Guest

Jump to the latest result

Delete by Slice

Delete by copyWithin

Delete by Filter

Delete by sliceConcat

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model gemma2:9b, generated one month ago):