Benchmark: JS array test - MeasureThat.net

Script Preparation code:

var input = [];
var new_array = [];
for (var i = 0; i < 500; i++) {
    input.push({
        id: i,
        data: Math.random()
            .toString(36)
            .replace(/[^a-z]+/g, "")
            .substr(0, 10),
        title: Math.random()
            .toString(36)
            .replace(/[^a-z]+/g, "")
            .substr(0, 10),
        is_active: Math.random() > 0.5 ? true : false,
    });
  
 new_array.push({
        id: i,
        data: Math.random()
            .toString(36)
            .replace(/[^a-z]+/g, "")
            .substr(0, 10),
        title: Math.random()
            .toString(36)
            .replace(/[^a-z]+/g, "")
            .substr(0, 10),
        is_active: Math.random() > 0.5 ? true : false,
    }); 
}

Tests:

Splice
input.splice(0, input.length, new_array);
Assign array
input = new_array

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Splice
Assign array

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser/OS: Chrome 120 on Windows

View result in a separate tab

Test name	Executions per second
Splice	5069670.5 Ops/sec
Assign array	7312821.5 Ops/sec

Related benchmarks:

JS array test (version: 0)

Test splice vs assign

Comparing performance of: Splice vs Assign array

Created: 4 years ago by: Guest

Jump to the latest result

Splice

Assign array

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A