Benchmark: splice vs slice test

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

/*your preparation JavaScript code goes here
To execute async code during the script preparation, wrap it as function globalMeasureThatScriptPrepareFunction, example:*/

const getTokens = function(length) {
  const tokens = [];
  for(let i=0; i < length; ++i) {
    tokens.push(i);
  }
  return tokens;
}

const runSplice = function(tokens) {
  const chunks = [];
  while(tokens.length) {
    chunks.push(tokens.splice(0,10));
  };
}

const runSlice = function(tokens) {
  const tokensBunch = [];
  let sliced = [];
  for (let i = 0; i < tokens.length; i += 10) {
    sliced = tokens.slice(i, i + 10);
    sliced.length && tokensBunch.push(sliced);
  }
}

Tests:

splice 1k
runSplice(getTokens(1000));
slice 1k
runSlice(getTokens(1000));
splice 10k
runSplice(getTokens(10000));
slice 10k
runSlice(getTokens(10000));

Historical Performance Data aggregated from 16 community runs

Desktop Results:

Chrome 16 runs

splice

149.7M/s

inline

227K/s

Fastest: splice (659.0x faster)

View exact numbers

✓ splice: 149,685,296 ops/sec
• inline: 227,130 ops/sec

Results show median performance across all community submissions. Run this benchmark yourself to verify on your device.

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
splice 1k
slice 1k
splice 10k
slice 10k

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 8 months ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36

Browser/OS: Chrome 143 on Windows

View result in a separate tab

slice 1k

217K/s

splice 1k

118K/s

slice 10k

25K/s

splice 10k

3K/s

View exact numbers

Test name	Executions per second
✓ slice 1k	216,624 Ops/sec
splice 1k	117,771 Ops/sec
slice 10k	25,250 Ops/sec
splice 10k	3,324 Ops/sec

splice vs slice test (version: 13)

Comparing performance of: `splice 1k vs slice 1k vs splice 10k vs slice 10k`

Created: 8 months ago by: Registered User

Go to the latest result

splice 1k

slice 1k

splice 10k

slice 10k

Historical Performance Data aggregated from 16 community runs

Desktop Results:

Chrome 16 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

splice vs slice test (version: 13)

Comparing performance of: splice 1k vs slice 1k vs splice 10k vs slice 10k

Created: 8 months ago by: Registered User

Go to the latest result

splice 1k

slice 1k

splice 10k

slice 10k

Historical Performance Data aggregated from 16 community runs

Desktop Results:

Chrome 16 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `splice 1k vs slice 1k vs splice 10k vs slice 10k`