Run results for: var vs let vs const

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36

Browser: Chrome 91

Operating system: Mac OS X 10.13.6

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
const	9597.6 Ops/sec
2	8904.1 Ops/sec

Tests:

const
const nums = [55, 21, 807, 41, 56, 66, 202]; for(var x = 0; x < nums.length; ++x) { console.log(nums[x]); }
2
const nums = [55, 21, 807, 41, 56, 66, 202]; for(var x = 0, l = nums.length; x < l; ++x) { console.log(nums[x]); }