Difference between id and name attributes in HTML

Question

What is the difference between the id and name attributes? They both seem to serve the same purpose of providing an identifier.

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Answer 1

ID tag - used by CSS, define a unique instance of a div, span or other elements. Appears within the Javascript DOM model, allowing you to access them with various function calls.

Name tag for fields - This is unique per form -- unless you are doing an array which you want to pass to PHP/server-side processing. You can access it via Javascript by name, but I think that it does not appear as a node in the DOM or some restrictions may apply (you cannot use .innerHTML, for example, if I recall correctly).