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Run results for:
slice, splice
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Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:133.0) Gecko/20100101 Firefox/133.0
Browser:
Firefox 133
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
splice
2K/s
slice
102/s
View exact numbers
Test name
Executions per second
✓
splice
1,776 Ops/sec
slice
102 Ops/sec
Script Preparation code:
var list = []; for (var i = 0; i < 1000 * 1000; i++) { list.push(i); }
Tests:
slice
list = [...list.slice(0,500), 9999, ...list.slice(500)]
splice
list.splice(500, 0, 9999)