Run results for: new const vs reassigning let vs reassigning var

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.38 Safari/537.36

Browser: Chrome 84

Operating system: Windows

Device Platform: Desktop

Date tested: 4 years ago

Tests:

for(var x = 0; x < 99999999; ++x) {
  const first = x;
  const second = x+1;
}

AخA
 
for(var x = 0; x < 99999999; ++x) {  const first = x;  const second = x+1;}

for(var x = 0; x < 99999999; ++x) {
  let ourLet = x;
  ourLet = x+1;
}

 
for(var x = 0; x < 99999999; ++x) {  let ourLet = x;  ourLet = x+1;}

for(var x = 0; x < 99999999; ++x) {
  var ourVar = x;
  ourVar = x+1;
}

 
for(var x = 0; x < 99999999; ++x) {  var ourVar = x;  ourVar = x+1;}