MeasureThat.net

Run results for: map vs forEach vs for loop

A test summing 1000 random numbers

Go to the benchmark
Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.89 Safari/537.36
Chrome 84
Mac OS X 10.15.5
Desktop
4 years ago
Test name Executions per second
reduce 955924.8 Ops/sec
for loop 1080904.0 Ops/sec
Script Preparation code:
AخA
 
var arrRandom = [];
for(var intCtr=0; intCtr<1000; intCtr++) {
  arrRandom.push(Math.floor(Math.random() * Math.floor(100)));
}
function doRedeuce(pArray) {
    return pArray.reduce(function(accum, curr) {return accum+curr});
}
function doLoop(pArray) {
    var accum = 0;
    for(var intCtr=0; intCtr<pArray.length; intCtr++) {
        accum += pArray[intCtr];
    }
    return accum;
}
Tests:

  • reduce

     
    var redeuceResult=0;
    redeuceResult = doRedeuce(arrRandom);

  • for loop

     
    var loopResult=0;
    loopResult = doLoop(arrRandom);