Run results for: join vs string + trim vs filter + join

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.102 Safari/537.36 OPR/84.0.4316.21

Browser: Opera 84

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
join	2562171.5 Ops/sec
string + trim	3419861.2 Ops/sec
filter + joint	1983404.8 Ops/sec

Script Preparation code:

var A = null;
var B = 'test';

Tests:

join
var result = [A | '' , B | ''].join(' ');
string + trim
var result = `${A | ''} ${B | ''}`.trim();
filter + joint
var result = [A, B].filter(Boolean).join(' ');

Run results for: join vs string + trim vs filter + join

join

string + trim

filter + joint