Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36
Chrome 132
Mac OS X 10.15.7
Desktop
16 days ago
Test name Executions per second
Find 155896.5 Ops/sec
Some 166744.1 Ops/sec
Script Preparation code:
x
 
var data = []
for (let i = 0; i < 5000; ++i) data.push({ username: 'toto' })
data.push({ username: 'titi' })
for (let i = 0; i < 2500; ++i) data.push({ username: 'toto' })
Tests:
  • Find

     
    !!data.find(e => e.username === 'titi')
  • Some

     
    data.some(e => e.username === 'titi')