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Run results for:
Remove by splice vs copyWithin vs filter
Deletion of an element from an array.
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Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=552446" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0
Browser:
Firefox 129
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
one year ago
Delete by copyWithin
1.0M/s
Delete by Splice
1.0M/s
Delete by Filter
238K/s
View exact numbers
Test name
Executions per second
✓
Delete by copyWithin
1,049,858 Ops/sec
Delete by Splice
1,046,691 Ops/sec
Delete by Filter
238,465 Ops/sec
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 deleteBySplice (array, element) { var index = array.indexOf( element ); if (index !== -1) { array.splice( 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 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" );