Run results for: is find arrays cached (es5)

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.0 Safari/605.1.15

Browser: Safari 15

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
single find	1088325.0 Ops/sec
double same find	550800.4 Ops/sec
double different find	549904.0 Ops/sec

Script Preparation code:

var data = Array(1000).fill().map(function(_, id) {
    return ({
        id: id,
        name: id + '_name',
    })
});
var data2 = Array(1000).fill().map(function(_, id) {
    return ({
        id: id,
        name: id + '_name',
    })
});

Tests:

single find
var found = data.find(function(item) { return item.id === 500 }); var result = { id: found.id, name: found.name, };
double same find
var result = { id: data.find(function(item) { return item.id === 500 }).id, name: data.find(function(item) { return item.id === 500 }).name, };
double different find
var result = { id: data.find(function(item) { return item.id === 500 }).id, name: data2.find(function(item) { return item.id === 500 }).name, };

Run results for: is find arrays cached (es5)

single find

double same find

double different find