В
function password(str) {
let err1 = 'error N1: must have least 8 characters long ';
let err2 = 'error N2: must have 1 uppercase letter ';
let err3 = 'error N3: must have 1 lowercase letter ';
let err4 = 'error N4: must have 1 number ';
let validArr = str.split('');
if (str.length < 8) { return console.log(err1) };
if (!validArr.some( elem => (elem.charCodeAt() > 64 && elem.charCodeAt() < 91))) { return console.log(err2) };
if (!validArr.some( elem => (elem.charCodeAt() > 96 && elem.charCodeAt() < 123))) { return console.log(err3) };
if (!validArr.some( elem => (elem.charCodeAt() > 47 && elem.charCodeAt() < 58))) { return console.log(err4) };
console.log('password: ' + str);
console.log('password length: ' + str.length);
return console.log('OK!');
}
password("RGEBEBBBFRVj55S");