Run results for: Remove by splice + findIndex vs filter

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Windows

Device Platform: Desktop

Date tested: 10 days ago

Test name	Executions per second
Delete by Splice	22724520.0 Ops/sec
Delete by Filter	15599430.0 Ops/sec

HTML Preparation code:

<script>
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</script>

Script Preparation code:

/* these functions assume that only one element matches, so they do not loop! */

function deleteBySplice (array, name) {
  var index = array.findIndex(element => element.name = name);
  if (index !== -1) {
  	array.splice( index, 1 );
  }
}

function deleteByFilter (array, name) {
  array = array.filter(element => element !== name);
}

Tests:

Delete by Splice
deleteBySplice( array, "7d9nkqdcq9c65jhwdfp5fp3nmi" ); deleteBySplice( array, "m1c6kzws0iubt8g0zlsug14i" ); deleteBySplice( array, "est573afhw1cg83xlxe6ogvi" ); deleteBySplice( array, "doesnotexist" );
Delete by Filter
deleteByFilter( array, "7d9nkqdcq9c65jhwdfp5fp3nmi" ); deleteByFilter( array, "m1c6kzws0iubt8g0zlsug14i" ); deleteByFilter( array, "est573afhw1cg83xlxe6ogvi" ); deleteByFilter( array, "doesnotexist" );

Run results for: Remove by splice + findIndex vs filter

Deletion of an element from an array.

Delete by Splice

Delete by Filter