Run results for: template literal vs allocated array.join vs unallocated array.join vs string.concat vs the + operator

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36 Edg/142.0.0.0

Browser: Chrome 142

Operating system: Windows

Device Platform: Desktop

Date tested: 8 months ago

the + operator

160.4M/s

template literal

141.4M/s

string concat

30.8M/s

array join

17.4M/s

unallocated array join

15.7M/s

View exact numbers

Script Preparation code:

var a = 'a';
var b = 'b';
var c = 'c';
var abc = [a,b,c];

Tests:

template literal
for (let n = 0; n < 1000; n++) { return `${a} ${b} ${c}`; }
array join
for (let n = 0; n < 1000; n++) { return abc.join(' '); }
string concat
for (let n = 0; n < 1000; n++) { return ''.concat(a, ' ', b, ' ', c); }
the + operator
for (let n = 0; n < 1000; n++) { return a + ' ' + b + ' ' + c; }
unallocated array join
for (let n = 0; n < 1000; n++) { return [a,b,c].join(' '); }