Should I replace JavaScrip with Brython or CoffeeScript?

Question

Dear, I need to help.

I am learning Python and i want to use it for web development. I feel Python or Coffee syntax easier to learn than JavaScript but i'm worry about perfomance and their support for a long time.

Thank so much!
sorry, my English is not good!

Answer 1

Dont think too much about it but do like you want.
If one day python coffee does not have enough performance. it will take u one week to learn javascript good enough for your project.
If u wanna go a more professional way, it is not a question of javascript or coffee but a question being ready to learn new tools/languages within a short time.