Run results for: reduce vs loop

Run details:

User agent: Mozilla/5.0 (iPad; CPU OS 10_0_2 like Mac OS X) AppleWebKit/601.1 (KHTML, like Gecko) CriOS/53.0.2785.109 Mobile/14A456 Safari/601.1.46

Browser: Chrome Mobile iOS 53

Operating system: iOS 10.0.2

Device Platform: iPad

Date tested: 8 years ago

Script Preparation code:

t=new Array(500000);
for (let i=0;i<t.length;i++) {t[i]=Math.random();}

AخA
 
t=new Array(500000);for (let i=0;i<t.length;i++) {t[i]=Math.random();}

Tests:

(() => {
  let i=0, res = 0;
for (;i<t.length;i++) res += t[i];
return res;})();

​x
 
(() => {  let i=0, res = 0;for (;i<t.length;i++) res += t[i];return res;})();​

(() => {
var i, res;
for (i=res=0;i<t.length;i++) res += t[i];
return res;})();

 
(() => {var i, res;for (i=res=0;i<t.length;i++) res += t[i];return res;})();