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In this video, Ralph demonstrates how to use JavaScript to check for empty text strings in a basic web form. He begins by setting up a simple webpage with a heading and creating a form with a POST method and a dummy action. The form consists of two text boxes for first name and last name, each accompanied by labels. Ralph uses HTML elements to enhance the form's structure, including `<label>` tags and input fields with IDs and names for each textbox. He also adds a submit button labeled "Send Data." Finally, he wraps the form elements in fieldset tags for better organization and validation.
