Run results for: trgrtgrtgtrgtrgtr

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36 Edg/114.0.1823.41

Browser: Chrome 114

Operating system: Windows

Device Platform: Desktop

Date tested: 11 months ago

Test name	Executions per second
forEach imbriqué	18843.5 Ops/sec
filter	24492.5 Ops/sec
filter direct push	17915.9 Ops/sec

Script Preparation code:

var data = [];
var res = [];

for (let i = 0; i < 150; i++) {
    data.push({
        id: i,
        bla: 'test',
        duration: 0
    });
}

for (let i = 0; i < 150; i++) {
    res.push({
        id: i,
        firstname: 'lastname',
        name: 'coucou',
        times: []
    });
}

for (var i = data.length - 1; i > 0; i--) {

    // Generate random number 
    var j = Math.floor(Math.random() * (i + 1));

    var temp = data[i];
    data[i] = data[j];
    data[j] = temp;
}

Tests:

forEach imbriqué
res.forEach(oElem => { data.forEach(oShuffle => { if (oElem.id === oShuffle.id) { oElem.times.push(oShuffle); } }); });
filter
res.forEach(oElem => { const aFilter = data.filter(oShuffle => oShuffle.id === oElem.id) || []; aFilter.forEach(oTest => { oElem.times.push(oTest); }); });
filter direct push
res.forEach(oElem => { const aFilter = data.filter(oShuffle => oShuffle.id === oElem.id) || []; oElem.times.push(aFilter); });

Run results for: trgrtgrtgtrgtrgtr

forEach imbriqué

filter

filter direct push