Run results for: is find arrays cached (es5)

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:94.0) Gecko/20100101 Firefox/94.0

Browser: Firefox 94

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
single find	273454.0 Ops/sec
double same find	104669.8 Ops/sec
double different find	104648.0 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