What are some examples of using validator libraries in JavaScript?

What are some examples of using validator libraries in JavaScript?

Validator libraries in JavaScript help ensure data integrity. For example, you can use 'validator.js' to validate email addresses.

Can you show me a code snippet using 'validator.js'?

Sure! Here's a simple example:

const validator = require('validator');

const email = '[email protected]';
if (validator.isEmail(email)) {
    console.log('Valid email!');
} else {
    console.log('Invalid email!');
}

What other libraries can I use for validation?

You can also use libraries like 'Joi', 'Yup', and 'express-validator' for more complex validation scenarios.

How do I integrate 'Joi' for validating an object?

Here's a quick example using 'Joi':

const Joi = require('joi');

const schema = Joi.object({
    email: Joi.string().email().required(),
    password: Joi.string().min(6).required()
});

const { error } = schema.validate({ email: '[email protected]', password: '123456' });
if (error) {
    console.log('Validation error:', error.details);
} else {
    console.log('Validation successful!');
}