function isValidText(value, minLength = 1) { return value && value.trim().length >= minLength; } function isValidDate(value) { const date = new Date(value); return value && date !== 'Invalid Date'; } function isValidImageUrl(value) { return value && value.startsWith('http'); } function isValidEmail(value) { return value && value.includes('@'); } exports.isValidText = isValidText; exports.isValidDate = isValidDate; exports.isValidImageUrl = isValidImageUrl; exports.isValidEmail = isValidEmail;