How to escape “&” ampersand character in form input using jQuery

Question

I have a problem with my jQuery script that send data via POST method. The problem is whenever it sends data via Ajax that has an "&" ampersand in the sentence

Answer 1

I've been having a huge problem exactly with this situation.

This is just to say that the last answer from Andrew Koester is the perfect answer I was looking for.

In case you are passing multiple form entries from a jQuery form to PHP through the .ajax() call like this:

data: "name=" + name + "&message=" + message + ...

DON'T USE THIS METHOD, it will block the ampersand(&) character from being written by the user on any of the input fields of your form.

Use this one instead as suggested by Andrew:

data: {"name": name, "email": email, "subject": subject, "comments": comments},

This way the user can write any kind of special character whithout worrying a about conflicting with the ajax declaration.