Semantic UI Form Validation

Semantic UI provides a convenient way to perform form validation using its form and field classes.

Syntax

To validate a form in Semantic UI, add the class ui form to the form element, and add the class="ui error message" to the error message element. Use the validation rules provided by Semantic UI to ensure that the form is valid before submission.

Use

Form validation is essential when creating web applications to ensure that user inputs are valid and match the expected format. Semantic UI provides an easy and efficient way to validate forms in web applications.

Importance

Form validation is crucial in avoiding unnecessary submission of data, reducing errors and increasing user experience. It helps to ensure that the data collected is accurate, complete and consistent. With Semantic UI, validation of forms is easy to implement and reduces the risk of user error, ensuring the accuracy of data input and saving both time and resources.

Example

Below is an example of how to use Semantic UI to validate a form:

<form class="ui form">
  <div class="field">
    <label>Username</label>
    <input type="text" name="username" placeholder="Username">
  </div>
  <div class="field">
    <label>Password</label>
    <input type="password" name="password" placeholder="Password">
  </div>
  <div class="field">
    <label>Email</label>
    <input type="email" name="email" placeholder="Email">
  </div>
   <button class="ui button" type="submit">Submit</button>
   <div class="ui error message"></div>
</form>

This example checks for the following form validations:

• Username is not empty
• Password is not empty and has a minimum length of 6 characters
• Email is a valid email address

Summary

Semantic UI makes form validation in web applications easy and efficient. By using built-in validation rules, developers can ensure that user inputs are accurate, complete, and consistent. Form validation provides an enhanced user experience and ensures high-quality data input.