Run results for: splice vs slice test

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36

Browser: Chrome 142

Operating system: Linux

Device Platform: Desktop

Date tested: 5 months ago

Test name	Executions per second
splice 1k	194518.5 Ops/sec
slice 1k	299768.2 Ops/sec
splice 10k	6374.6 Ops/sec
slice 10k	32779.7 Ops/sec

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));

Run results for: splice vs slice test

splice 1k

slice 1k

splice 10k

slice 10k