With these validation checks in place, when a user tries to submit an empty field for Name, it gives an error that pops right in the form field. So, a form using this attributes may look like: maxLength: Specifies maximum length for the text data string.minLength: Specifies minimum length for the text data string.type: Specifies the data's type (i.e a number, email address, string, etc).required: Specifies which fields must be filled before submitting the form.JavaScript-based: Validation that's coded with JavaScript.īuilt-in Form Validation Using required, type, minLength, maxLength.
Built-in: Uses HTML-based attributes like required, type, minLength, maxLength, pattern, etc.Though both of these types are equally important, this guide will focus on client-side validation only.Ĭlient-side validation is further categorized as: Server-side: Validation is done on the server.Client-side: Validation is done in the browser.Form validation also ensures that the provided information is in the correct format (e.g. : Represents a clickable button that's used to submit the form data.Ī process that checks if the information provided by a user is correct or not.Input types can be text, checkbox, email, radio, and more. It depends significantly on the value of the type attribute. : The form element that is widely used to structure the form fields.Labels aid accessibility, especially for screen readers. : An element that defines the label for other form elements.method: Specifies the HTTP method, i.e., GET or POST used to send data while submitting the form.It's generally a URL (an absolute URL or a relative URL). action: An attribute that specifies where the form data is sent when the form is submitted.The HTML tag acts as a container for different elements like text field and submit button.
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