Benchmark: map vs object.keys

Script Preparation code:

var obj = {
  'a': {id: 1},
  'b': {id: 1},
  'c': {id: 1},
  'd': {id: 1},
  'e': {id: 1},
  'f': {id: 1},
  'g': {id: 1}
};

var arr = [
  {id: 1},
  {id: 1},
  {id: 1},
  {id: 1},
  {id: 1},
  {id: 1},
  {id: 1}
];

Tests:

map
for (var i=10000; i > 0; i--) { const ids = arr.map(item => item.id) }
Object.keys
for (var i=10000; i > 0; i--) { const ids = Object.keys(obj); }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
map
Object.keys

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Linux; Android 10; SM-A600FN) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Mobile Safari/537.36

Browser/OS: Chrome Mobile 81 on Android

View result in a separate tab

Test name	Executions per second
map	101.4 Ops/sec
Object.keys	50.1 Ops/sec

map vs object.keys (version: 0)

Comparing performance of: map vs Object.keys

Created: 3 years ago by: Guest

Jump to the latest result

map

Object.keys

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A