Benchmark: Boolean vs String comparison for discriminated unions

Script Preparation code:

function getRandoBoolean() {
  return !!(Math.floor(Math.random() * 2));
}

function getRandoString() {
  return !!(Math.floor(Math.random() * 2)) ? 'accepted' : 'rejected';
}

function getRandoShortString() {
  return !!(Math.floor(Math.random() * 2)) ? 'y' : '';
}


var arrB = [...(new Array(1000))].map(v => getRandoBoolean());
var arrStr = [...(new Array(1000))].map(v => getRandoString());
var arrShortStr = [...(new Array(1000))].map(v => getRandoShortString());

var arrObjB = [...(new Array(1000))].map(v => getRandoBoolean() ? {ok : true ,b: 'value'}: {ok : false ,c: 'value'});
var arrObjStr = [...(new Array(1000))].map(v => getRandoBoolean() ? {ok : 'yes' ,b: 'value'}: {ok : 'no' ,c: 'value'});
var arrObjProp = [...(new Array(1000))].map(v => getRandoBoolean() ? {ok : true ,b: 'value'}: { c: 'value'});

Tests:

rB
const rB = arrB.reduce((acc, v) => v ? acc + 'yes' : acc + 'no', '');
rBStrict
const rBStrict = arrB.reduce((acc, v) => v === true ? acc + 'yes' : acc + 'no', '');
rStr
const rStr = arrStr.reduce((acc, v) => v === 'accepted' ? acc + 'yes' : acc + 'no', '');
rShortStr
const rShortStr = arrShortStr.reduce((acc, v) => v ? acc + 'yes' : acc + 'no', '_');
rObjB
const rObjB = arrObjB.reduce((acc, v) => v.ok ? acc + 'yes' : acc + 'no', '');
rObjBStrict
const rObjBStrict = arrObjB.reduce((acc, v) => v.ok === true ? acc + 'yes' : acc + 'no', '');
rObjStr
const rObjStr = arrObjStr.reduce((acc, v) => v.ok === 'yes' ? acc + 'yes' : acc + 'no', '');
rObjProp
const rObjProp = arrObjProp.reduce((acc, v) => v.ok ? acc + 'yes' : acc + 'no', '');
rObjPropIn
const rObjPropIn = arrObjProp.reduce((acc, v) => 'ok' in v? acc + 'yes' : acc + 'no', '');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
rB
rBStrict
rStr
rShortStr
rObjB
rObjBStrict
rObjStr
rObjProp
rObjPropIn

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.54 Safari/537.36 Edg/101.0.1210.39

Browser/OS: Chrome 101 on Windows

View result in a separate tab

Test name	Executions per second
rB	191365.8 Ops/sec
rBStrict	212715.3 Ops/sec
rStr	210001.1 Ops/sec
rShortStr	195391.8 Ops/sec
rObjB	179867.5 Ops/sec
rObjBStrict	206788.3 Ops/sec
rObjStr	178039.5 Ops/sec
rObjProp	151610.5 Ops/sec
rObjPropIn	195117.2 Ops/sec

Boolean vs String comparison for discriminated unions (version: 0)

Comparing performance of: rB vs rBStrict vs rStr vs rShortStr vs rObjB vs rObjBStrict vs rObjStr vs rObjProp vs rObjPropIn

Created: 2 years ago by: Guest

Jump to the latest result

rB

rBStrict

rStr

rShortStr

rObjB

rObjBStrict

rObjStr

rObjProp

rObjPropIn

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A