MeasureThat.net

Run results for: reduce performance

reduce slice performance

Go to the benchmark
Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.2.1 Safari/605.1.15
Safari 17
Mac OS X 10.15.7
Desktop
5 months ago
Test name Executions per second
slice-1 1402509.4 Ops/sec
slice-2 482.5 Ops/sec
Script Preparation code:
AخA
 
function randomString(e) {    
    e = e || 32;
    var t = "ABCDEFGHJKMNPQRSTWXYZabcdefhijkmnprstwxyz2345678",
    a = t.length,
    n = "";
    for (i = 0; i < e; i++) n += t.charAt(Math.floor(Math.random() * a));
    return n
}
var str1 = randomString(100)
var str2 = randomString(100000)
Tests:

  • slice-1

     
    var result1 = Array.from(str1.slice(1, 3)).reduce(function (previousValue, currentValue, index, array) {
      return previousValue + currentValue;
    })
    var result2 = Array.from(str1.slice(4, 6)).reduce(function (previousValue, currentValue, index, array) {
      return previousValue + currentValue;
    })
    var result3 = Array.from(str1.slice(7, 10)).reduce(function (previousValue, currentValue, index, array) {
      return previousValue + currentValue;
    })

  • slice-2

     
    var result1 = Array.from(str2.slice(1, 30000)).reduce(function (previousValue, currentValue, index, array) {
      return previousValue + currentValue;
    })
    var result2 = Array.from(str2.slice(28999, 69999)).reduce(function (previousValue, currentValue, index, array) {
      return previousValue + currentValue;
    })
    var result3 = Array.from(str2.slice(67000, 99999)).reduce(function (previousValue, currentValue, index, array) {
      return previousValue + currentValue;
    })