Run results for: Array join vs string template

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:132.0) Gecko/20100101 Firefox/132.0

Browser: Firefox 132

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

template literal

173.6M/s

Array

24.2M/s

View exact numbers

Test name	Executions per second
✓ template literal	173,616,160 Ops/sec
Array	24,159,470 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)}`