Here is a useful JavaScript code snippet which validates email and then saves it in a cookie for pre-filling or auto-fill email addresses in input fields

First to check email address

Paste this code in the head section of your HTML code

Explanation

Most of the upper part check email string, then in the end we need to call our cookieMan function for cookie creation. And this will only happen once the email validates. After cookie creation, we are opening a new thanks.html page for the user

Now Javascript Cookie creation code

Also paste this code in the head section of your html file

Explanation

If no cookie is present, it will create a new cookie with 15 days to expire. CookieMan function is setting the cookie values, its name, value and expiration date. In the end i am calling getCookie function to show already saved email addresses

Now HTML code

Paste this code inside the body section of your html file

			  Enter E-mail Address:


	Click here to save your cookie

Explanation

Please note that if you change the form name to anything else, remember to alter the name in JavaScript code too. Also i am using email input as “from” which is also used in Javascript code so dont get confused

Notes

Source files are for learning purpose only, I have learned these code snippets from other website which i don’t remember so sorry if it belongs to someone else, just link to my original article. Thanks !

Download Source Files

Just enjoy this code and share it with others, thanks a lot