Welcome to today's session, where we will focus on form validation, a critically vital aspect of web development. Consider web forms as doorways that allow users to interact with web applications—whether registering for accounts or submitting requests. However, if we were to permit any input in these forms, chaos could ensue. Hence, we mitigate this issue by employing form validation. In this session, we'll master HTML attributes such as required, type, minlength, maxlength, min/max, understand regular expressions (regex), study the pattern attribute, and learn how JavaScript validates forms.
HTML form input attributes give us the power to validate user input right in the browser, serving as our first line of defense in form validation. Let's dissect these attributes:
required: This attribute ensures the user supplies input in a necessary field.type: Specifies the kind of data the user must input (e.g., text, email, number, etc.).minlengthand : These constraints limit the length of user input.
