Benchmark: lookup table vs if statement

Tests:

Lookup
Object.prototype.add = function (){ const object = Object.assign(this); const keys = Object.keys(object); let index = 0; const loopup = { 'object': function(arr){ const array = Object.values(arr); for(let o = 0, l = array.length; o < l; o++){ if(typeof(array[o]) === 'number'){ object[keys[index]] += array[o]; index++; } if(index === keys.length) break; }; }, 'number': function(number){ object[keys[index]] += number; index++; } } for(let i = 0, length = arguments.length; i < length; i++) { loopup[typeof(arguments[i])](arguments[i]) if(index === keys.length) break; } return object; }; const AddToObject = {"x": 121, "y": 122, "z": 500, p: 500, l: 69, j: 420}.add(900000,{x:6900,z:9000}, [5000000,123,123]);
if else
Object.prototype.add = function (){ const object = Object.assign(this); const keys = Object.keys(object); let index = 0; for(let i = 0, length = arguments.length; i < length; i++) { const type = typeof(arguments[i]) if(type === 'object'){ const array = Object.values(arguments[i]); for(let o = 0, l = array.length; o < l; o++){ if(typeof(array[o]) === 'number'){ object[keys[index]] += array[o]; index++; } if(index === keys.length) break; }; } else if(type === 'number') { object[keys[index]] += arguments[i]; index++; } if(index === keys.length) break; } return object; }; const AddToObject = {"x": 121, "y": 122, "z": 500, p: 500, l: 69, j: 420}.add(900000,{x:6900,z:9000}, [5000000,123,123]);

Historical Performance Data aggregated from 6 community runs

Desktop Results:

Chrome 6 runs

if else

2.4M/s

Lookup

2.1M/s

Fastest: if else (1.2x faster)

View exact numbers

✓ if else : 2,396,363 ops/sec
• Lookup: 2,063,204 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
Lookup
if else

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0

Browser/OS: Firefox 138 on Windows

View result in a separate tab

if else

5.7M/s

Lookup

4.6M/s

View exact numbers

Test name	Executions per second
✓ if else	5,665,081 Ops/sec
Lookup	4,586,976 Ops/sec

lookup table vs if statement (version: 0) Benchmark.js

Comparing performance of: `Lookup vs if else`

Created: 4 years ago by: Guest

Go to the latest result

Lookup

if else

Historical Performance Data aggregated from 6 community runs

Desktop Results:

Chrome 6 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

lookup table vs if statement (version: 0) Benchmark.js

Comparing performance of: Lookup vs if else

Created: 4 years ago by: Guest

Go to the latest result

Lookup

if else

Historical Performance Data aggregated from 6 community runs

Desktop Results:

Chrome 6 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `Lookup vs if else`