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In the signup form, we need to make the name field mandatory. We will start implementing this validation. First let me include the error message that needs to be displayed when the field is empty. In app.component.html, I am including a div tag with text as Name field is required. This is the message that will be shown when the field is empty. It would be good if we can apply some styling on this message to indicate that it is an error message. We are going to apply some styling with smaller font in red color. To apply styling, I am including the div tag with class attribute having value as error. Now let us define the styling for the error class in app.component.css. In app.component.css, I am including error class with font-size as 0.6rem and color as red. I am saving all the files using shortcut key. After the page reload, we can see the error message displayed. The label, form element and message are close to each other, let us apply some spacing in between.
