Web Reference: In this video, I will teach you how to use JavaScript to validate a drop-down menu using HTML forms. Step-by-step tutorial for beginners....more Learn how to create a clickable dropdown menu with CSS and JavaScript. A dropdown menu is a toggleable menu that allows the user to choose one value from a predefined list: Create a dropdown menu that appears when the user clicks on a button. Use any element to open the dropdown menu, e.g. a , or element. Have an option with value 0 which is going to be the default option of the dropdown and add required attribute to the select element. Once this select element is in a form and is submitted , HTML is automatically going to take over the validation part.
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