Of all the hats JavaScript can wear, its form-processing features are among the most sought and used. Learn how to use JavaScript for form processing, validation, and more.

Client-side scripting using JavaScript. ... Client-side scripts can also be used to perform validation of data entered into forms, either using JavaScript or some new features of HTML5.

“Enabling JavaScript allows us to better protect our services and users from bots and evolving forms of abuse and spam,” the ... performing searches through Google aren’t using JavaScript.