@euk-labs/beltz/lib/esm/validators/findPasswordFlaws.js

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/**
 *
 * @param password string to be verified
 * @returns null if valid or array of improvement points
 */
export function findPasswordFlaws(password) {
    const reasons = [];
    if (password.length < 8) {
        reasons.push('Password must be at least 8 characters long');
    }
    if (password.search(/[a-z]/) === -1) {
        reasons.push('Password must contain at least one lowercase letter');
    }
    if (password.search(/[A-Z]/) === -1) {
        reasons.push('Password must contain at least one uppercase letter');
    }
    if (password.search(/[0-9]/) === -1) {
        reasons.push('Password must contain at least one number');
    }
    if (password.search(/[^a-zA-Z0-9]/) === -1) {
        reasons.push('Password must contain at least one special character');
    }
    return reasons.length ? reasons : null;
}
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