Programming Language in curriculum

Can anyone help me to know which programming language to use for coding these interview question in the last curriculum?

If you’re doing the interview questions in the FCC editor, they are like the rest of the challenges in that they expect to be done in Javascript.

If you’re solving them on your own outside of FCC, use whichever programming language you’re most comfortable with. If you know more than one language, feel free to switch between them – don’t feel as if you have to do all of them in the same language. My own preference is Python, but I sometimes switch to Perl or even Haskell for other problems.

Thank you very much for finding time to reply!So i can’t code in C++?

Sure you can use C++ outside of Free Code Camp and work through the questions, but if you want to use the learn.freecodecamp.org site, you will have to use JavaScript.