Validating form input javascript

Posted by / 26-Jan-2017 06:25

Validating forms has notoriously been a painful development experience.Implementing client side validation in a user friendly, developer friendly, and accessible way is hard.The errors currently show immediately as a user is typing into the form.

The property of a DOM node contains the message the browser displays to the user when a node's validity is checked and fails.Javas Script can be used to perform some preliminary tests on the form inputs, before sending the data to server.This takes care of erroneous information saving time for both users and the server, and since the script is executed on the client side there is no excess load on the server.If we let our form do it, it will look pretty ugly. Let's go through and add an error message for each of our inputs if they are not Now our form has the correct Bootstrap error classes.Sometimes it is not desirable to show errors while a user is typing.

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Today we'll be looking at at the ways that Angular helps us do form validations.