What are the basic steps to perform form validation using jQuery?

Question

Aryan Kumar · Answer

The basic steps to perform form validation using jQuery are as follows:

Include the jQuery library. The jQuery library is a JavaScript library that provides a variety of useful functions, including form validation. To include the jQuery library in your HTML document, add the following code to the head of your document:

Code snippet

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>

Create a form. The form is the element that will be validated. To create a form, add the following code to your HTML document:

Code snippet

<form id="myForm">
  <input type="text" name="username" />
  <input type="password" name="password" />
  <input type="submit" value="Submit" />
</form>

Attach the jQuery validation plugin to the form. The jQuery validation plugin is a plugin that provides a variety of form validation functions. To attach the jQuery validation plugin to the form, add the following code to your JavaScript file:

Code snippet

$(document).ready(function() {
  $("#myForm").validate();
});

Define the validation rules. The validation rules are the rules that will be used to validate the form fields. To define the validation rules, add the following code to your JavaScript file:

Code snippet

$(document).ready(function() {
  $("#myForm").validate({
    rules: {
      username: {
        required: true
      },
      password: {
        required: true,
        minlength: 6
      }
    }
  });
});

Validate the form. The form can be validated by calling the validate() method on the form object. For example, the following code would validate the form:

Code snippet

$("#myForm").validate();

If the form is valid, the submit() method on the form object will be called. If the form is invalid, an error message will be displayed.

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What are the basic steps to perform form validation using jQuery?

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