Run results for: var vs let vs const

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:59.0) Gecko/20100101 Firefox/59.0

Browser: Firefox 59

Operating system: Windows

Device Platform: Other

Date tested: 2025 years ago

Test name	Executions per second
const	3493.3 Ops/sec
2	2991.1 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]; const l = nums.length; for(var x = 0; x < l; ++x) { console.log(nums[x]); }