Benchmark: string slice vs add one by one

Script Preparation code:

var example = 'this is just an example'
var start = 5
var end = 17

Tests:

Slice
var result = example.slice(start, end)
add one by one
var result = ''; for (let i = start; i <= end; i++) { result += example[i] }

Rendered benchmark preparation results:

Previous results

Test case name	Result
Slice
add one by one

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Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.88 Safari/537.36

Browser/OS: Chrome 79 on Mac OS X 10.15.2

Test name	Executions per second
Slice	6181468.0 Ops/sec
add one by one	475931.5 Ops/sec

string slice vs add one by one (version: 0)