Run results for: Object array search by property

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36

Browser: Chrome 121

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

javascript array.find with function and index

4K/s

javascript array.find

4K/s

javascript array.find with function

4K/s

for loop

549/s

View exact numbers

Test name	Executions per second
✓ javascript array.find with function and index	4,219 Ops/sec
javascript array.find	4,169 Ops/sec
javascript array.find with function	4,168 Ops/sec
for loop	549 Ops/sec

Script Preparation code:

a = [];
for(var i=0;i<10000;i++){
  a.push({index:i,data:"blabla",randomField:"foobarfoobarfoobarfoobar",date:Date.now()});
}
var indexToFind = 5780;

Tests:

for loop
ind = -1; for(var i =0;i<a.length;i++){ if(a[i].index == indexToFind){ ind = i; } } a[ind].data;
javascript array.find
a.find(x => x.index == indexToFind).data;
javascript array.find with function
a.find(function(cv,i){ return cv.index == indexToFind;}).data;
javascript array.find with function and index
a.find(function(cv,i){ if(cv.index == indexToFind){ ind = i; return true; }else return false; }).data;