How can I handle validation errors in JavaScript?

How can I handle validation errors in JavaScript?

You can handle validation errors in JavaScript by using try-catch blocks, form validation libraries, or custom validation functions.

Can you give me an example of using a try-catch block for validation?

Sure! Here's a simple example:

function validateInput(input) {
    if (!input) {
        throw new Error('Input cannot be empty');
    }
}

try {
    validateInput('');
} catch (error) {
    console.error(error.message);
}

What about using HTML5 validation features?

HTML5 provides built-in validation features like required, minlength, and pattern attributes. You can also listen for the invalid event to handle custom messages.

Are there any libraries you recommend for validation?

Yes! Libraries like Joi, Validator.js, and Yup are popular for handling complex validation scenarios in JavaScript.