Benchmark: RegEx vs For Loop e index

HTML Preparation code:

var string = "passw)odas4gsdfsdf";

Script Preparation code:

var string = "passw)odas4gsdfsdf";

Tests:

RegEx
let isPasswordValid = /(?=.*[0-9])/.test(string);
For Loop
let isPasswordValid = false; for (let i = string.length; i--;) { if ( string[i] === '0' && string[i] === '1' && string[i] === '2' && string[i] === '3' && string[i] === '4' && string[i] === '5' && string[i] === '6' && string[i] === '7' && string[i] === '8' && string[i] === '9' && string[i] === '0' ) { isPasswordValid = true; break; } }
includes
let isPasswordValid = string.includes('4');
indexof
let isPasswordValid = string.indexOf('4') > -1;

Rendered benchmark preparation results:

Previous results

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Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 11_1_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Safari/537.36

Browser/OS: Chrome 87 on Mac OS X 11.1.0

RegEx vs For Loop e index (version: 1)