Question

Which of the following is possible to be referenced in external JavaScript?

(a) CPP

(b) Cs

(c) PHP

(d) Python

I have been asked this question in an interview.

My question comes from External JavaScript and PHP in chapter Caching, Debugging and Animation of JavaScript

Answer 1

The correct answer is (c) PHP

To explain I would say: PHP (recursive acronym for PHP: Hypertext Preprocessor) is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML. One of the lesser known sides of external JavaScript is the ability to reference a PHP file instead of the familiar .js file.