Run results for: Ryan Test Benchmark

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.105 Safari/537.36

Browser: Chrome 84

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Delete by Splice	394719.9 Ops/sec
Delete by copyWithin	32664.3 Ops/sec
Delete by Filter	218811.1 Ops/sec

HTML Preparation code:

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  var array = 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</script>

Script Preparation code:

/* these functions assume that only one element matches, so they do not loop! */

function deleteBySplice (array, element) {
  var index = array.indexOf( element );
  if (index !== -1) {
    const arr2 = [...array];
  	arr2.splice( index, 1 );
    return arr2;
  }
}

function deleteByCopyWithin (array, element) {
  var index = array.indexOf( element );
  if (index !== -1) {
    const arr2 = [...array];
  	arr2.copyWithin( index, index + 1 );
    --arr2.length;
    return arr2;
  }
}

function deleteByFilter (array, element) {
  return array.filter( el => el !== element );
}

Tests:

Delete by Splice
deleteBySplice( array, "uyjxmtqnrzvj7mkyqmtoqolxr" ); deleteBySplice( array, "m1c6kzws0iubt8g0zlsug14i" ); deleteBySplice( 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" );

Run results for: Ryan Test Benchmark

Deletion of an element from an array.

Delete by Splice

Delete by copyWithin

Delete by Filter