Run results for: toString vs string literal vs + empty string

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36

Browser: Chrome 108

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
toString a number	13682580.0 Ops/sec
string literal a number	25871240.0 Ops/sec
add empty string to number	25841250.0 Ops/sec

Script Preparation code:

var numbers = [1, 12, 123, 1234, 12345, 123456, 1234567, 12345678, 123456789];
var strNumbers = ["1", "12", "123", "1234", "12345", "123456", "1234567", "12345678", "123456789"];

Tests:

toString a number
numbers.forEach(n => n.toString());
string literal a number
numbers.forEach(n => `${n}`);
add empty string to number
numbers.forEach(n => n + "");

Run results for: toString vs string literal vs + empty string

toString a number

string literal a number

add empty string to number