Benchmark Run Result for: string concat + join vs unshift + join (2)

string concat + join vs unshift + join (2)

Date tested: 3 months ago

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36

Test name	Executions per second
string concat + join	10527600.0 Ops/sec
unshift + join	5708046.0 Ops/sec

Benchmark definition (click to collapse):

Script Preparation code:

function case1() {
  var el = 'test';
  var arr = ['foo', 'bar'];

  return el + arr.join(',');
}

function case2() {
  var el = 'test';
  var arr = ['foo', 'bar'];

  arr.unshift(el);
  return arr.join(',');
}

Tests:

string concat + join
case1()
unshift + join
case2()

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