Explain why it is important to check the email address with JavaScript and again when it reaches the server.

It is important to check the email address with JavaScript first on the client-side because it is quicker than the server and you don't need to refresh any pages (assuming AJAX is not used). Additionally, it is important to validate the email address on the server-side afterwards since the user could modify the page and bypass the front-end validation. This adds an extra layer of protection to ensure that only validated data is processed.

MB
Answered by Matthew B. Computing tutor

9668 Views

See similar Computing A Level tutors

Related Computing A Level answers

All answers ▸

Define resolution in regards to images and how it differs from colour depth


Why indentation is important in Python and what is the scope of a global variable?


How can XOR be used in encryption and what type of encryption is this ?


What is the difference between an array and a record?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences