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Run results for:
Remove by splice vs copyWithin vs filter vs delete
Go to the benchmark
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=588118" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36
Browser:
Chrome 133
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Remove by delete
28.5M/s
Remove by copy within
2.8M/s
Remove by splice
2.8M/s
Remove by filter
915K/s
View exact numbers
Test name
Executions per second
✓
Remove by delete
28,526,010 Ops/sec
Remove by copy within
2,793,470 Ops/sec
Remove by splice
2,785,957 Ops/sec
Remove by filter
915,321 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 removeBySplice (array, element) { var index = array.indexOf( element ); if (index !== -1) { array.splice( index, 1 ); } } function removeByCopyWithin (array, element) { var index = array.indexOf( element ); if (index !== -1) { array.copyWithin( index, index + 1 ); --array.length; } } function removeByFilter (array, element) { array = array.filter( el => el !== element ); } function removeByDelete (array, element) { delete array[element]; }
Tests:
Remove by splice
removeBySplice( array, "uyjxmtqnrzvj7mkyqmtoqolxr" ); removeBySplice( array, "m1c6kzws0iubt8g0zlsug14i" ); removeBySplice( array, "4wlivut0n1ht80rs5lyf7ds4i" );
Remove by copy within
removeByCopyWithin( array, "uyjxmtqnrzvj7mkyqmtoqolxr" ); removeByCopyWithin( array, "m1c6kzws0iubt8g0zlsug14i" ); removeByCopyWithin( array, "4wlivut0n1ht80rs5lyf7ds4i" );
Remove by filter
removeByFilter( array, "uyjxmtqnrzvj7mkyqmtoqolxr" ); removeByFilter( array, "m1c6kzws0iubt8g0zlsug14i" ); removeByFilter( array, "4wlivut0n1ht80rs5lyf7ds4i" );
Remove by delete
removeByDelete( array, "uyjxmtqnrzvj7mkyqmtoqolxr" ); removeByDelete( array, "m1c6kzws0iubt8g0zlsug14i" ); removeByDelete( array, "4wlivut0n1ht80rs5lyf7ds4i" );