@adonis-agora/authkit-react/build/src/hooks/use_password_strength.js

Frontend ergonomics over AuthKit for AdonisJS + Inertia + React apps: a typed useAuth() hook, role-gating hooks and gating components.

import { useMemo } from 'react';
export function heuristicScorer(password) {
    if (!password)
        return { score: 0, feedback: ['Enter a password.'] };
    const feedback = [];
    const classes = [/[a-z]/, /[A-Z]/, /[0-9]/, /[^A-Za-z0-9]/];
    const variety = classes.filter((re) => re.test(password)).length;
    const length = password.length;
    let points = 0;
    if (length >= 8)
        points += 1;
    if (length >= 12)
        points += 1;
    if (length >= 16)
        points += 1;
    if (variety >= 2)
        points += 1;
    if (variety >= 3)
        points += 1;
    if (length < 12)
        feedback.push('Use at least 12 characters.');
    if (!/[A-Z]/.test(password))
        feedback.push('Add an uppercase letter.');
    if (!/[0-9]/.test(password))
        feedback.push('Add a number.');
    if (!/[^A-Za-z0-9]/.test(password))
        feedback.push('Add a symbol.');
    const score = Math.max(0, Math.min(4, points));
    return { score, feedback: feedback.length ? feedback : undefined };
}
export function usePasswordStrength(password, options = {}) {
    const scorer = options.scorer ?? heuristicScorer;
    return useMemo(() => scorer(password), [password, scorer]);
}