Run results for: Remove by splice vs spliceIdx vs filter

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 17

Operating system: iOS 17.4

Device Platform: Mobile

Date tested: 2 years ago

Delete by Splice Index

1.5M/s

Delete by Splice

1.4M/s

Delete by Filter

964K/s

View exact numbers

Test name	Executions per second
✓ Delete by Splice Index	1,504,763 Ops/sec
Delete by Splice	1,393,693 Ops/sec
Delete by Filter	964,067 Ops/sec

HTML Preparation code:

<script>
  var array = ["m1c6kzws0iubt8g0zlsug14i","xalskr21dm5ke5wczew154s4i","hvbfe3uq3pmoehpilh4zpvi","ffr2btp9rihf3qce770ttke29","ymwh11qu16qwqn5vaafxhia4i","1l7rj49636ddmk3cbszitchaor","bg1njla9dvdkdlw9mbz1l9pb9","201y3ambt118dt7j7bxc6ry66r","hsgzqv2ex2j9j8znv3uzbyb9","k8tuq5ucdx1whgkdcby44pldi","2sjycnx525scxzfxfmwl7q4cxr"];
</script>

Script Preparation code:

/* these functions assume that only one element matches, so they do not loop! */

function deleteBySplice (array, element) {
  array.splice( array.indexOf( element ), 1 );
}

function deleteBySpliceIdx (array, element) {
  array.splice( element, 1 );
}

function deleteByFilter (array, element) {
  array = array.filter( el => el !== element );
}

Tests:

Delete by Splice
deleteBySplice( array, "2sjycnx525scxzfxfmwl7q4cxr" ); deleteBySplice( array, "m1c6kzws0iubt8g0zlsug14i" ); deleteBySplice( array, "1l7rj49636ddmk3cbszitchaor" );
Delete by Splice Index
deleteBySpliceIdx( array, 10 ); deleteBySpliceIdx( array, 0 ); deleteBySpliceIdx( array, 5 );
Delete by Filter
deleteByFilter( array, "2sjycnx525scxzfxfmwl7q4cxr" ); deleteByFilter( array, "m1c6kzws0iubt8g0zlsug14i" ); deleteByFilter( array, "1l7rj49636ddmk3cbszitchaor" );

Run results for: Remove by splice vs spliceIdx vs filter

Deletion of an element from an array.

Delete by Splice

Delete by Splice Index

Delete by Filter