Validating year in Kannada live sex
To do this, I use a function that both validates and normalizes (eg String.trim()) the data. Some folks like using the Graph QL shorthand to write a big text blob schema.
There are a bunch of popular libraries out there like the bloated Joi and the async Yup, but I roll my own 100 LOC solution that plugs directly into redux-form so both client and server can use the same validation schema. I don’t do that for the same reason I don’t write all my Java Script in a text file & call eval() on it.
In MVC, validation happens on both the client and server. NET has abstracted validation into validation attributes.
In this example, the user selects a date from a calendar and then specifies the start and end dates to validate the specified date against.
This includes constraints such as assigning data types or required fields.
Other types of validation include applying patterns to data to enforce business rules, such as a credit card, phone number, or email address.
This type of thing becomes critical when you have a realtime app and are editing the same document in sub-second intervals. For example, if I want to validate a new user’s email address, I’ll need a regex, but I’ll also need to make sure it doesn’t already exist in my DB.
I don’t care if you can hack an election, you still can’t change the primary key in a DB. Sure, you probably already validated this on the client, but rule #1 of a secure web app is to never trust the client. If I need to validate that in the resolve function anyways, I might as well do the regex in there, too (and return a client error message far prettier than the ugly mess Graph QL gives me).