Run results for: range generator vs array vs for

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:121.0) Gecko/20100101 Firefox/121.0

Browser: Firefox 121

Operating system: Ubuntu

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
generator	360.6 Ops/sec
array	431.6 Ops/sec
for	730.3 Ops/sec

Tests:

generator

function* range(a, b) {
  do {
    yield a;
  } while ((a += 1) < b);
}

let total = 0;
for (let ii of range(0,100000)) {
  total += ii;
}

​x
 
function* range(a, b) {  do {    yield a;  } while ((a += 1) < b);}​let total = 0;for (let ii of range(0,100000)) {  total += ii;}

array

function range(a, b) {
  let arr = [];
  for (i = a; i < b; i++) {
    arr.push(i);
  }
  return arr;
}

let total = 0;
for (let ii of range(0, 100000)) {
  total += ii;
}

 
function range(a, b) {  let arr = [];  for (i = a; i < b; i++) {    arr.push(i);  }  return arr;}​let total = 0;for (let ii of range(0, 100000)) {  total += ii;}

for

function range(a, b) {
  let arr = [];

  return arr;
}

let total = 0;
for (i = 0; i < 100000; i++) {
  total += i;
}

 
function range(a, b) {  let arr = [];​  return arr;}​let total = 0;for (i = 0; i < 100000; i++) {  total += i;}