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JS Array Clearing 2
(version: 1)
Comparing performance of:
Length = 0 vs Splice vs Re-assign
Created:
one year ago
by:
Guest
Go to the latest result
Script Preparation code:
var a = []; for (var i=0; i < 1000000;i++){ a.push("item"+i); }
Tests:
Length = 0
a.length = 0;
Splice
a.splice(0, a.length-1);
Re-assign
a = []
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
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Test case name
Result
Length = 0
Splice
Re-assign
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one year ago
)
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/OS:
Chrome 133 on Windows
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=591312" width="100%" height="500px"></iframe>
Splice
38.3M/s
Length = 0
27.2M/s
Re-assign
7.5M/s
View exact numbers
Test name
Executions per second
✓
Splice
38,335,840 Ops/sec
Length = 0
27,164,878 Ops/sec
Re-assign
7,482,026 Ops/sec
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array.splice vs for loop
JS Array Clearing
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