Run results for: map vs ifelse vs switch test

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.87 Safari/537.36

Browser: Chrome 98

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
map	6872.9 Ops/sec
if/else	7470.7 Ops/sec
swticth	6768.2 Ops/sec

Script Preparation code:

 const statusMap = new Map([
    [0, 'zero'],
    [1, 'one'],
    [2, 'two'],
    [3, 'three'],
    [4, 'four'],
  ]);

function getStatusByMap(value) {
   return statusMap.get(value);
 };

 function getStatusBySwitch(value) {
    switch (value) {
      case 0:
        return 'zero';
      case 1:
        return 'one';
      case 2:
        return 'two';
      case 3:
        return 'three';
      case 4:
        return 'four';
      default:
        return 'Undefined';
    }
  };

  function getStatusByIfElse(value) {
    if (value === 0) {
      return 'Initializing';
    } else if (value === 1) {
      return 'zero';
    } else if (value === 2) {
      return 'one';
    } else if (value === 3) {
      return 'two';
    } else if (value === 4) {
      return 'Error';
    }
  };

var i = 0; var count = 1000; var a;

Tests:

map
for (i = 0; i < count; i++) { getStatusByMap(i % 5) }
if/else
for (i = 0; i < count; i++) { getStatusByIfElse(i % 5) }
swticth
for (i = 0; i < count; i++) { getStatusBySwitch(i % 5) }

Run results for: map vs ifelse vs switch test

map

if/else

swticth