Can you explain the distinction between data-ng and ng?

I recently came across a discussion about the distinction between

ng-* and data-ng-* 

in AngularJS. Apparently, using data-ng-* ensures that the HTML remains valid. But I can't help but wonder, why is this necessary when I can simply declare the angular namespace in a single line like so?

<html xmlns:ng="http://angularjs.org" ng-app>

Is it merely for the purpose of validation by an HTML Validator?

Pardon my ignorance, but I am quite perplexed by all of this.

Answer №1

This snippet serves solely to confirm the accuracy of your HTML code.

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