How to serialize form data into a query string with jQuery?

To serialize form data into a query string using jQuery, you can use the .serialize() or .serializeArray() methods. Here's an example:

HTML form:

<form id="myForm">
  <input type="text" name="name" value="John">
  <input type="email" name="email" value="[email protected]">
  <input type="number" name="age" value="25">
</form>

JavaScript:

var formData = $('#myForm').serialize();
console.log(formData);

Output:

name=John&email=john%40example.com&age=25

In the example above, the serialize() method is used to serialize form data into a query string. The resulting formData string can then be used in an AJAX request or appended to a URL as query parameters.