Run results for: Remove by splice + findIndex vs filter

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:84.0) Gecko/20100101 Firefox/84.0

Browser: Firefox 84

Operating system: Linux

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Delete by Splice	10594370.0 Ops/sec
Delete by Filter	6294333.0 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