Python Flask WT-Forms Demo: Intro to Validation -- Input Required
In this video we add validation to our WT-Forms demo. This first level of validation is to require a field. One can add further levels of validation so the validators argument in WT-Forms is a list. The InputRequired() validator adds a "required" attribute to the form element when the HTML for the form is rendered.
play_arrow
More Database Introduction: Database Categories and Codd's Rules for Relational Databases
play_arrow
Finding More Patterns in the Perfect-Shuffle (Riffle) Integer Sequence with Wolfram-Cloud