Identify a true statement of a JavaScript program in a web form.
A) JavaScript intercepts the content of the form before the browser attempts to contact the CGI script and report whether the data contained in the survey form has been correctly filled out or not.
B) JavaScript is a closed-source programming language,which provides tools and a programming environment for communicating the strategy and overall administration of distributed applications.
C) JavaScript is extracted by all layout engines in a similar way; as a consequence,this grounds consistency in terms of functionality and interface.
D) JavaScript is a bug-free Visual Basic scripting language,which is used only for networking applications.

Question

Identify a true statement of a JavaScript program in a web form.
A) ​JavaScript intercepts the content of the form before the browser attempts to contact the CGI script and report whether the data contained in the survey form has been correctly filled out or not.
B) ​JavaScript is a closed-source programming language,which provides tools and a programming environment for communicating the strategy and overall administration of distributed applications.
C) ​JavaScript is extracted by all layout engines in a similar way; as a consequence,this grounds consistency in terms of functionality and interface.
D) ​JavaScript is a bug-free Visual Basic scripting language,which is used only for networking applications.

Quizplus · Accepted Answer

JavaScript can be used to validate user input on a web form before the data is sent to the server. By intercepting the form submission event, JavaScript can prevent the form from being submitted and instead check the user input for errors.

Identify a True Statement of a JavaScript Program in a Web