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Is server side more secure?
Server Side Only: This one is more secure than Client-only by a long shot, but cuts back on user friendliness. They have to send their form to the server, have it validated and receive the error page back saying a particular field was invalid.
Is it necessary to have server side validation although you already have client-side validation If yes explain why?
In order to provide immediate feedback. Client-side validation gives the user immediate feedback without having to wait for the page to load. However if the client has disabled client-side scripts (e.g. JavaScript disabled), the validation won’t fire which is why you need the server to check the values as well.
Why do we need server side?
Server-side programming is very useful because it allows us to efficiently deliver information tailored for individual users and thereby create a much better user experience.
What does it mean to use server side validation?
Using server-side validation indicates that any input sent by the user (or client) cannot be trusted. In order to show how effective this is, the following form is vulnerable to Cross-Site Scripting.
Is it safe to use client side validation in JavaScript?
While client-side validation can provide a responsive, intuitive and smooth user experience, it’s necessary to remember that it’s not reliable and adds no security as it can be easily turned off by the user if they simply disable JavaScript or remove the HTML validations using standard developer tools.
What happens if you skip an email field?
Notice in the code above the type and the required properties of the input fields. If a user skips a required field, enters an invalid email address into the email field, or enters anything other than a number into the age field, then they’ll receive a very informative visual notification of their error and the form will not submit.
Why do we need to validate input in JavaScript?
When accepting any form of user input it’s necessary to validate the submitted information in order to ensure its accuracy and validity. Reasons for this include but are not limited to: