if (c.get().length < 8) C.isValid = !1, c.hasErrors = !0, c.errors = [{ message: "Password too short" }]; else if (c.get

if (c.get().length < 8) C.isValid = !1, c.hasErrors = !0, c.errors = [{ message: "Password too short" }]; else if (c.get().length > 256) C.isValid = !1, c.hasErrors = !0, c.errors = [{ message: "Password too long" }]; else if (/^[a-zA-Z0-9`~!@#\$%^&*()_=+\[\]{};:'",.<>\/? -]*$/.test(c.get())) { var e = 0; /[a-z]/.test(c.get()) && (e += 1), /[A-Z]/.test(c.get()) && (e += 1), /[0-9]/.test(c.get()) && (e += 1), /[`~!@#\$%^&*()_=+\[\]{};:'",.<>\/? -]/.test(c.get()) && (e += 2), 3 > e ? (C.isValid = !1, c.hasErrors = !0, c.errors = [{ message: "Password too simple" }]) : (c.hasErrors = !1, c.errors.length = 0) } else C.isValid = !1, c.hasErrors = !0, c.errors = [{ message: "Invalid symbols in password" }] Maybe they could've used https://github.com/dropbox/zxcvbn https://github.com/dropbox/zxcvbn to determine password strength.