Run results for: Array join vs string template

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36

Browser: Chrome 137

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

template literal

61.4M/s

Array

11.1M/s

View exact numbers

Test name	Executions per second
✓ template literal	61,399,216 Ops/sec
Array	11,096,049 Ops/sec

Script Preparation code:

var str = "Hello World"
var newStr = "Goodbye"
var start = 5

Tests:

Array
const foo = [ str.slice(0, start), newStr, str.slice(start) ].join('')
template literal
const foo = `${str.slice(0, start)}${newStr}${str.slice(start)}`