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HTML Build an Interactive Website Form Validation and Manipulation Checking Values

Posted by Luis Chiappe
Luis Chiappe
Courses Plus Student 10,636 Points

Function(email) vs $("#email");

Why on the function validate use email as parameter and doesn't use inside the function $("#email"); I mean which is the difference between those?

1 Answer

Don McCurdy
Don McCurdy
2,345 Points
Don McCurdy
Don McCurdy
2,345 Points

They are actually not the same thing. $("#email") is really just an HTML element on the page: the little textbox you're typing into. On the other hand email is the the content that was typed into that textbox: the email address. To break that down a bit:

$("#email") is the visible interface you can type into:

<input type="text" id="email">

email is the content of that textbox, which you can get by asking the textbox for it's content using .val():

var email = $("#email").val();
// now 'email' == "john.doe@gmail.com" or whatever you typed

So to make sure the content is valid, you would use the content, email. To do something related to the interface (like changing colors) you would use the HTML textbox, $("#email").