Run results for: for vs for ... of 2

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36

Browser: Chrome 103

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
for	24.1 Ops/sec
for ... of	15.8 Ops/sec

Script Preparation code:

const text = new Array(2000000).fill("a").join("");

AخA
 
const text = new Array(2000000).fill("a").join("");

Tests:

for

const text = new Array(2000000).fill("a").join("");
const string = new Array(text.length);
for (let i = 0; i < text.length; i++) {
  string[i] = text[i];
}

 
const text = new Array(2000000).fill("a").join("");const string = new Array(text.length);for (let i = 0; i < text.length; i++) {  string[i] = text[i];}

for ... of
const text = new Array(2000000).fill("a").join(""); const string = []; for (const char of text) { string.push(char); }
const text = new Array(2000000).fill("a").join("");
const string = [];
for (const char of text) {
string.push(char);
}